{"title":"Busch Burs","description":"","products":[{"product_id":"busch-fig-411ct-twincut-concave-cone-cup-burs-0-80-2-30mm","title":"Busch Fig. 411CT - Twincut Concave Cone Cup Burs .80mm-2.30mm-6 Packs","description":"\u003cp\u003ePrecision cup burs designed for rounding and finishing prongs during stone setting. The twincut blade geometry cuts cleanly and clears shavings efficiently, giving you controlled shaping with a smooth, consistent result.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFig. 411CT concave cone cup bur with twincut blade geometry\u003c\/li\u003e\n  \u003cli\u003eDesigned for finishing and rounding prong tips during stone setting\u003c\/li\u003e\n  \u003cli\u003eTwincut design allows efficient removal of metal shavings\u003c\/li\u003e\n  \u003cli\u003eManufactured from tungsten vanadium steel\u003c\/li\u003e\n  \u003cli\u003eMade to ultra-high precision tolerances\u003c\/li\u003e\n  \u003cli\u003eSold in multiples of 6 per size\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eCup Bur – Fig. 411CT (Concave Cone)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBlade Geometry\u003c\/th\u003e\n\u003ctd\u003eTwincut\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Vanadium Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\" (2.35 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.80–2.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e6 per size\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDiameter (mm)\u003c\/th\u003e\n\u003cth\u003eDiameter (in)\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411008\u003c\/td\u003e\n\u003ctd\u003e0.80 mm\u003c\/td\u003e\n\u003ctd\u003e0.0315\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411009\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003ctd\u003e0.0354\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411010\u003c\/td\u003e\n\u003ctd\u003e1.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.0394\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411011\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003ctd\u003e0.0433\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411012\u003c\/td\u003e\n\u003ctd\u003e1.20 mm\u003c\/td\u003e\n\u003ctd\u003e0.0472\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411013\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003ctd\u003e0.0512\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411014\u003c\/td\u003e\n\u003ctd\u003e1.40 mm\u003c\/td\u003e\n\u003ctd\u003e0.0551\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411015\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003ctd\u003e0.0591\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411016\u003c\/td\u003e\n\u003ctd\u003e1.60 mm\u003c\/td\u003e\n\u003ctd\u003e0.0630\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411017\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003ctd\u003e0.0669\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411018\u003c\/td\u003e\n\u003ctd\u003e1.80 mm\u003c\/td\u003e\n\u003ctd\u003e0.0709\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411019\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003ctd\u003e0.0748\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411020\u003c\/td\u003e\n\u003ctd\u003e2.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.0787\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411021\u003c\/td\u003e\n\u003ctd\u003e2.10 mm\u003c\/td\u003e\n\u003ctd\u003e0.0827\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411022\u003c\/td\u003e\n\u003ctd\u003e2.20 mm\u003c\/td\u003e\n\u003ctd\u003e0.0866\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eB118.411023\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003ctd\u003e0.0906\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePrimary use: rounding and finishing prongs during stone setting.\u003c\/li\u003e\n  \u003cli\u003eAlso available in Fig. 411T with traditional concave geometry for a more rounded prong profile.\u003c\/li\u003e\n  \u003cli\u003eSold in multiples of 6 per size.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":".80mm","offer_id":43533778354390,"sku":"B118.411008","price":27.85,"currency_code":"USD","in_stock":true},{"title":".90mm","offer_id":43533778387158,"sku":"B118.411009","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.00mm","offer_id":43533778419926,"sku":"B118.411010","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.10mm","offer_id":43533778452694,"sku":"B118.411011","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.20mm","offer_id":43533778485462,"sku":"B118.411012","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.30mm","offer_id":43533778518230,"sku":"B118.411013","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.40mm","offer_id":43533778550998,"sku":"B118.411014","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.50mm","offer_id":43533778583766,"sku":"B118.411015","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.60mm","offer_id":43533778616534,"sku":"B118.411016","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.70mm","offer_id":43533778649302,"sku":"B118.411017","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.80mm","offer_id":43533778682070,"sku":"B118.411018","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.90mm","offer_id":43533778714838,"sku":"B118.411019","price":27.85,"currency_code":"USD","in_stock":true},{"title":"2.00mm","offer_id":43533778747606,"sku":"B118.411020","price":27.85,"currency_code":"USD","in_stock":true},{"title":"2.10mm","offer_id":43533778780374,"sku":"B118.411021","price":27.85,"currency_code":"USD","in_stock":true},{"title":"2.20mm","offer_id":43533778813142,"sku":"B118.411022","price":27.85,"currency_code":"USD","in_stock":true},{"title":"2.30mm","offer_id":43533778845910,"sku":"B118.411023","price":27.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-411ct-twincut-concave-cone-cup-burs-80mm-2-30mm-6-packs-otto-frei.jpg?v=1719959186"},{"product_id":"busch-fig-1au-carbide-round-burs-3-32-shank-0-30mm-3-50mm","title":"Busch Fig 1AU Carbide Round Burs 3\/32\" Shank 0.30mm-3.50mm-By the Piece","description":"\u003cp\u003eBusch Fig. 1AU carbide round burs are designed for precision enlargement of drilled holes during pavé setting. Used after a 4205S carbide twist drill, these burs create a secure seat for the rondiste of the stone, delivering clean, controlled cutting even in the toughest metals.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFig. 1AU round bur for enlarging and shaping drilled seats\u003c\/li\u003e\n\u003cli\u003eIdeal for second-step pavé setting applications\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for exceptional longevity\u003c\/li\u003e\n\u003cli\u003eSuitable for platinum, titanium, steel, and hard alloys\u003c\/li\u003e\n\u003cli\u003ePowerful blade geometry for efficient cutting\u003c\/li\u003e\n\u003cli\u003e3\/32\" shank fits standard flex shaft and micromotor handpieces\u003c\/li\u003e\n\u003cli\u003eRecommended operating speed: 2,000–10,000 RPM\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eFig. 1AU Round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32 in. (2.35 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.30 mm (0.012 in.) – 3.50 mm (0.138 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003ctd\u003e2,000–10,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufactured In\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eBur Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.173\u003c\/td\u003e\n\u003ctd\u003e0.30 mm (0.012 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.174\u003c\/td\u003e\n\u003ctd\u003e0.40 mm (0.016 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.175\u003c\/td\u003e\n\u003ctd\u003e0.50 mm (0.020 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.176\u003c\/td\u003e\n\u003ctd\u003e0.60 mm (0.024 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.177\u003c\/td\u003e\n\u003ctd\u003e0.70 mm (0.028 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.178\u003c\/td\u003e\n\u003ctd\u003e0.80 mm (0.031 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.179\u003c\/td\u003e\n\u003ctd\u003e0.90 mm (0.035 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.180\u003c\/td\u003e\n\u003ctd\u003e1.00 mm (0.039 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.181\u003c\/td\u003e\n\u003ctd\u003e1.10 mm (0.043 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.182\u003c\/td\u003e\n\u003ctd\u003e1.20 mm (0.047 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.183\u003c\/td\u003e\n\u003ctd\u003e1.30 mm (0.051 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.184\u003c\/td\u003e\n\u003ctd\u003e1.40 mm (0.055 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.185\u003c\/td\u003e\n\u003ctd\u003e1.50 mm (0.059 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.186\u003c\/td\u003e\n\u003ctd\u003e1.60 mm (0.063 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.187\u003c\/td\u003e\n\u003ctd\u003e1.70 mm (0.067 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.188\u003c\/td\u003e\n\u003ctd\u003e1.80 mm (0.071 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in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.196\u003c\/td\u003e\n\u003ctd\u003e2.60 mm (0.102 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.197\u003c\/td\u003e\n\u003ctd\u003e2.70 mm (0.106 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.198\u003c\/td\u003e\n\u003ctd\u003e2.80 mm (0.110 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.199\u003c\/td\u003e\n\u003ctd\u003e2.90 mm (0.114 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.200\u003c\/td\u003e\n\u003ctd\u003e3.00 mm (0.118 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.201\u003c\/td\u003e\n\u003ctd\u003e3.10 mm (0.122 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.205\u003c\/td\u003e\n\u003ctd\u003e3.50 mm (0.138 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch 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Fig. 27A Flame Steel Cut Burs 1.00mm-1.40mm","description":"\u003cp\u003eBusch burs are among the most trusted names in professional jewelers' cutting tools. The Fig. 27A Flame Steel Cut Burs are precision-crafted from tungsten vanadium steel, held to ultra-high tolerance standards that demanding jewelers and metalsmiths rely on. The flame shape makes these burs ideal for detailed carving, undercutting, and shaping work in metal.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlame-shaped bur profile for detailed metal shaping and carving\u003c\/li\u003e\n\u003cli\u003eManufactured from tungsten vanadium steel\u003c\/li\u003e\n\u003cli\u003eProduced to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eAvailable in three sizes ranging from 1.00mm – 1.40mm\u003c\/li\u003e\n\u003cli\u003eSold in multiples of six per size\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Shape\u003c\/th\u003e\n\u003ctd\u003eFlame (Fig. 27A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1.00mm – 1.40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold In\u003c\/th\u003e\n\u003ctd\u003eMultiples of 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eBur Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.587\u003c\/td\u003e\n\u003ctd\u003e1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.588\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.589\u003c\/td\u003e\n\u003ctd\u003e1.40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSizes less than 4.0mm are sold in multiples of six only. Orders must be placed in quantities of 6 or multiples thereof.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"1.00mm","offer_id":43557505827030,"sku":"B118.587","price":9.5,"currency_code":"USD","in_stock":true},{"title":"1.20mm","offer_id":43557505859798,"sku":"B118.588","price":9.5,"currency_code":"USD","in_stock":true},{"title":"1.40mm","offer_id":43557505892566,"sku":"B118.589","price":9.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-27a-flame-steel-cut-burs-1-00mm-1-40mm-otto-frei.jpg?v=1719959019"},{"product_id":"busch-447au-pave-cut-carbide-twist-drill-round-burs-3-32-shank-0-80-1-60mm","title":"Busch 447AU Pave Cut Carbide Twist Drill Round Burs On 3\/32\" Shanks","description":"\u003cp\u003eThe Busch Pfingst 447AU Pavé Cut Carbide Bur is an innovative dual-action tool engineered specifically for pavé stone setting. By combining a twist drill and a round bur into a single instrument, it performs pre-drilling and shaping in one step—reducing workflow time while maintaining exceptional accuracy. The result is cleaner seats, improved alignment, and greater efficiency at the bench.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCombines twist drill and round bur in one tool\u003c\/li\u003e\n\u003cli\u003eUp to 50% faster than using two separate burs\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for pavé stone setting\u003c\/li\u003e\n\u003cli\u003ePrecision cutting geometry for accurate seat formation\u003c\/li\u003e\n\u003cli\u003eManufactured from ultra-fine grain carbide\u003c\/li\u003e\n\u003cli\u003eLong-lasting performance with clean cutting action\u003c\/li\u003e\n\u003cli\u003eSold individually (by the piece)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Style\u003c\/th\u003e\n\u003ctd\u003ePfingst 447AU Pavé Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003ctd\u003eCombined twist drill and round bur\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHot isostatically compressed ultra-fine grain carbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003ePavé stone setting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufactured In\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eBur Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.448\u003c\/td\u003e\n\u003ctd\u003e0.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.449\u003c\/td\u003e\n\u003ctd\u003e0.90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.450\u003c\/td\u003e\n\u003ctd\u003e1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.451\u003c\/td\u003e\n\u003ctd\u003e1.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.452\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.453\u003c\/td\u003e\n\u003ctd\u003e1.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.454\u003c\/td\u003e\n\u003ctd\u003e1.40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.455\u003c\/td\u003e\n\u003ctd\u003e1.50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.456\u003c\/td\u003e\n\u003ctd\u003e1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThis dual-purpose design consolidates drilling and shaping into a single operation, helping improve consistency and reduce tool changes during pavé work.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"0.80mm","offer_id":43557655576790,"sku":"BAU118.448","price":34.55,"currency_code":"USD","in_stock":true},{"title":"0.90mm","offer_id":43557655609558,"sku":"BAU118.449","price":34.55,"currency_code":"USD","in_stock":true},{"title":"1.00mm","offer_id":43557655642326,"sku":"BAU118.450","price":34.55,"currency_code":"USD","in_stock":true},{"title":"1.10mm","offer_id":43557655675094,"sku":"BAU118.451","price":34.55,"currency_code":"USD","in_stock":true},{"title":"1.20mm","offer_id":43557655707862,"sku":"BAU118.452","price":34.55,"currency_code":"USD","in_stock":true},{"title":"1.30mm","offer_id":43557655740630,"sku":"BAU118.453","price":34.55,"currency_code":"USD","in_stock":true},{"title":"1.40mm","offer_id":43557655773398,"sku":"BAU118.454","price":34.55,"currency_code":"USD","in_stock":true},{"title":"1.50mm","offer_id":43557655806166,"sku":"BAU118.455","price":34.55,"currency_code":"USD","in_stock":true},{"title":"1.60mm","offer_id":43557655838934,"sku":"BAU118.456","price":34.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-447au-pave-cut-carbide-twist-drill-round-burs-on-332-shanks-otto-frei-1.jpg?v=1719958958"},{"product_id":"busch-fig-415-knife-edge-bur-1-0mm-3-5mm-tungsten-vanadium","title":"Busch Fig. 415 Bur Knife Edge 1.0mm - 3.5mm","description":"\u003cp\u003eBusch Fig. 415 knife edge wheel burs are precision-engineered for stone setting and fine metalwork. With a 55° cutting angle, they create narrow, controlled cuts in precious metals, delivering crisp seats and clean definition where accuracy matters most. Available in 24 sizes from 1.00 mm to 3.50 mm, these burs are sold in multiples of six — one unit equals one 6-pack.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFig. 415 knife edge (lens) profile for narrow, precise cuts\u003c\/li\u003e\n\u003cli\u003e55° cutting angle ideal for stone setting applications\u003c\/li\u003e\n\u003cli\u003eMade from tungsten vanadium steel for durability and edge retention\u003c\/li\u003e\n\u003cli\u003eManufactured to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eAvailable in 24 sizes from 1.00 mm to 3.50 mm\u003c\/li\u003e\n\u003cli\u003eSold in multiples of six (one unit equals one 6-pack)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eKnife Edge Wheel (Fig. 415)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCutting Angle\u003c\/th\u003e\n\u003ctd\u003e55°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Vanadium Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1.00 mm (0.039 in) – 3.50 mm (0.138 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e6 per unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eBur Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.751\u003c\/td\u003e\n\u003ctd\u003e1.00 mm (0.039 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.752\u003c\/td\u003e\n\u003ctd\u003e1.10 mm (0.043 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4203 4 Groove Carbide Twist Drills on 3\/32\" Shanks .70mm to 2.30mm","description":"\u003cp\u003eThe Busch 4203 series carbide twist drills feature a 4-groove design optimized for cutting softer organic materials such as coral and pearls. Mounted on 3\/32\" shanks, these drills are available in 13 sizes ranging from 0.70mm to 2.30mm, making them a versatile addition to any jeweler's or craftsperson's drill collection. Sold individually, each drill delivers outstanding service life when used correctly.\u003c\/p\u003e\n\n\u003cp\u003eFor best results and longest tool life, use these drills in a drill press. As with any drill, excess leverage or canting can cause breakage. When working freehand, operate within the recommended speed range. These drills are \u003cstrong\u003enot suitable for glass, ceramics, or gemstones\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-groove carbide construction\u003c\/strong\u003e engineered for softer materials including coral and pearls\u003c\/li\u003e\n\u003cli\u003eOutstanding service life compared to standard twist drills\u003c\/li\u003e\n\u003cli\u003e3\/32\" shank fits standard flex shaft handpieces and drill presses\u003c\/li\u003e\n\u003cli\u003e13 sizes available from 0.70mm to 2.30mm\u003c\/li\u003e\n\u003cli\u003eSold by the piece — select only the size you need\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGroove Type\u003c\/th\u003e\n\u003ctd\u003e4-Groove\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Materials\u003c\/th\u003e\n\u003ctd\u003eCoral, pearls, and other soft organic materials\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNot For Use On\u003c\/th\u003e\n\u003ctd\u003eGlass, ceramics, gemstones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFreehand Speed Range\u003c\/th\u003e\n\u003ctd\u003e5,000–9,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrill Press Speed Range\u003c\/th\u003e\n\u003ctd\u003e8,000–14,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.70mm–2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003ePer piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDrill Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.707\u003c\/td\u003e\n\u003ctd\u003e0.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.708\u003c\/td\u003e\n\u003ctd\u003e0.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.709\u003c\/td\u003e\n\u003ctd\u003e0.90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.710\u003c\/td\u003e\n\u003ctd\u003e1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.711\u003c\/td\u003e\n\u003ctd\u003e1.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.712\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.713\u003c\/td\u003e\n\u003ctd\u003e1.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.714\u003c\/td\u003e\n\u003ctd\u003e1.40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.715\u003c\/td\u003e\n\u003ctd\u003e1.50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.716\u003c\/td\u003e\n\u003ctd\u003e1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.718\u003c\/td\u003e\n\u003ctd\u003e1.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.721\u003c\/td\u003e\n\u003ctd\u003e2.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.723\u003c\/td\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse 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Fig 203HSS High Speed Steel Twist Drills on 3\/32\" Shanks-0.50mm to 1.20mm","description":"\u003cp\u003eBusch Fig 203HSS High Speed Steel twist drills are mounted on 3\/32\" shanks, making drill size changes fast and convenient without re-chucking. High Speed Steel offers superior hardness and longer service life compared to standard tungsten vanadium tool steel, thanks to its high temperature stability and strong tensile strength. These precision twist drills are made in Germany by Busch and are sold individually, allowing jewelers and metalsmiths to stock exactly the sizes they need.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for extended durability and heat resistance\u003c\/li\u003e\n\u003cli\u003eMounted on 3\/32\" shanks for quick, easy size changes in standard flex-shaft and rotary handpieces\u003c\/li\u003e\n\u003cli\u003eTwist drill geometry for clean, accurate hole drilling in metal and related bench materials\u003c\/li\u003e\n\u003cli\u003eGerman-made Busch quality, trusted by professional jewelers and metalsmiths\u003c\/li\u003e\n\u003cli\u003eSold individually — purchase only the sizes you need\u003c\/li\u003e\n\u003cli\u003eAvailable in seven sizes from 0.50mm to 1.20mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHigh Speed Steel (HSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e203HSS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eIndividually (per piece)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDrill Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.684\u003c\/td\u003e\n\u003ctd\u003e0.50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.685\u003c\/td\u003e\n\u003ctd\u003e0.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.686\u003c\/td\u003e\n\u003ctd\u003e0.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.687\u003c\/td\u003e\n\u003ctd\u003e0.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.688\u003c\/td\u003e\n\u003ctd\u003e0.90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.689\u003c\/td\u003e\n\u003ctd\u003e1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.690\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":".50mm","offer_id":43578999341270,"sku":"128.684","price":6.95,"currency_code":"USD","in_stock":true},{"title":".60mm","offer_id":43578999374038,"sku":"128.685","price":6.95,"currency_code":"USD","in_stock":true},{"title":".70mm","offer_id":43578999406806,"sku":"128.686","price":6.95,"currency_code":"USD","in_stock":true},{"title":".80mm","offer_id":43578999439574,"sku":"128.687","price":6.95,"currency_code":"USD","in_stock":true},{"title":".90mm","offer_id":43578999472342,"sku":"128.688","price":6.95,"currency_code":"USD","in_stock":true},{"title":"1.00mm","offer_id":43578999505110,"sku":"128.689","price":6.95,"currency_code":"USD","in_stock":true},{"title":"1.20mm","offer_id":43745481720022,"sku":"128.690","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-203hss-high-speed-steel-twist-drills-on-332-shanks-0-50mm-to-1-20mm-otto-frei.jpg?v=1719958726"},{"product_id":"busch-fig-414au-carbide-90-degree-hart-burs-3-32-shank-0-90-2-30mm","title":"Busch Fig 414AU Carbide 90 Hart Burs 3\/32\" Shank .90mm-2.30mm By the Piece","description":"\u003cp\u003eBusch Fig 414AU Carbide 90° Hart Burs are precision-ground setting burs designed for cutting seats in prongs. Sold individually, these 90-degree hart burs are an ideal choice for jewelers who demand exceptional longevity and cutting performance from their burs. Carbide construction outlasts both tungsten vanadium and high-speed steel burs, making them the longest-lasting burs available for demanding bench work.\u003c\/p\u003e\u003cp\u003eBusch carbide burs excel on the toughest metals — including platinum, titanium, and steel — while also delivering extremely long service life on standard gold alloys. The result is a lower cost per use compared to conventional burs. Manufactured in Germany using state-of-the-art techniques, these burs feature a powerful blade geometry typically found only on steel tooling. All shanks are 3\/32\". Available in 15 sizes from 0.90 mm to 2.30 mm.\u003c\/p\u003e\u003cp\u003eRelated Busch carbide hart burs: Fig 446AU 70° Hart Bur (BAU118.509) and Fig 413AU Traditional Setting Bur (BAU118.808AU).\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e90-degree hart bur geometry for precise prong seat cutting\u003c\/li\u003e\n\u003cli\u003eCarbide construction — outlasts tungsten vanadium and high-speed steel burs\u003c\/li\u003e\n\u003cli\u003eSuitable for platinum, titanium, steel, and gold alloys\u003c\/li\u003e\n\u003cli\u003eAdvanced blade geometry for superior cutting performance\u003c\/li\u003e\n\u003cli\u003eManufactured in Germany to exacting standards\u003c\/li\u003e\n\u003cli\u003e3\/32\" shank fits standard flex-shaft handpieces\u003c\/li\u003e\n\u003cli\u003eSold individually — choose only the sizes you need\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eHart Bur, 90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003eFig 414AU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.90 mm – 2.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003ctd\u003e2,000 – 10,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eIndividually (by the piece)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eAvailable Options\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eBur Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.509\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.510\u003c\/td\u003e\n\u003ctd\u003e1.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.511\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.512\u003c\/td\u003e\n\u003ctd\u003e1.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.513\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.514\u003c\/td\u003e\n\u003ctd\u003e1.40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.515\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.516\u003c\/td\u003e\n\u003ctd\u003e1.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.517\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.518\u003c\/td\u003e\n\u003ctd\u003e1.80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.519\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.520\u003c\/td\u003e\n\u003ctd\u003e2.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.521\u003c\/td\u003e\n\u003ctd\u003e2.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.522\u003c\/td\u003e\n\u003ctd\u003e2.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.523\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":".90mm","offer_id":43579040039126,"sku":"BAU118.509","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.00mm","offer_id":43579040071894,"sku":"BAU118.510","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.10mm","offer_id":43579040104662,"sku":"BAU118.511","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.20mm","offer_id":43579040137430,"sku":"BAU118.512","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.30mm","offer_id":43579040170198,"sku":"BAU118.513","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.40mm","offer_id":43579040202966,"sku":"BAU118.514","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.50mm","offer_id":43579040235734,"sku":"BAU118.515","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.60mm","offer_id":43579040268502,"sku":"BAU118.516","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.70mm","offer_id":43579040301270,"sku":"BAU118.517","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.80mm","offer_id":43579040334038,"sku":"BAU118.518","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.90mm","offer_id":43579040366806,"sku":"BAU118.519","price":21.95,"currency_code":"USD","in_stock":true},{"title":"2.00mm","offer_id":43579040399574,"sku":"BAU118.520","price":21.95,"currency_code":"USD","in_stock":true},{"title":"2.10mm","offer_id":43579040432342,"sku":"BAU118.521","price":21.95,"currency_code":"USD","in_stock":true},{"title":"2.20mm","offer_id":43579040465110,"sku":"BAU118.522","price":21.95,"currency_code":"USD","in_stock":true},{"title":"2.30mm","offer_id":43579040497878,"sku":"BAU118.523","price":21.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-414au-carbide-90-hart-burs-332-shank-90mm-2-30mm-by-the-piece-otto-frei.jpg?v=1719958714"},{"product_id":"busch-fig-446au-carbide-70-hart-burs-3-32-shank-0-90-2-30mm","title":"Busch Fig 446AU Carbide 70 Hart Burs 3\/32\" Shank .90mm-2.30mm By the Piece","description":"\u003cp\u003eSold by the piece, Busch Fig 446AU carbide 70° hart burs are designed for cutting clean, accurate stone seats in prongs on precious and hard metals. The sharp carbide blades bite smoothly into the metal, providing a controlled, predictable feel at the handpiece.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e70° hart profile engineered specifically for cutting prong seats for stone setting.\u003c\/li\u003e\n\u003cli\u003eCarbide construction for extremely long service life compared to steel or tungsten vanadium burs.\u003c\/li\u003e\n\u003cli\u003eSuitable for use on platinum, titanium, steel, and standard gold alloys.\u003c\/li\u003e\n\u003cli\u003ePrecision Busch blade geometry provides aggressive yet controllable cutting action.\u003c\/li\u003e\n\u003cli\u003eCalibrated diameter range to match common prong and stone seat dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003e70° hart bur, Fig 446AU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eCutting stone seats in prongs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter Range\u003c\/th\u003e\n\u003ctd\u003e0.90–2.30 mm (0.035–0.091 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank\u003c\/th\u003e\n\u003ctd\u003e3\/32 in (approx. 2.38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003ctd\u003e2,000–10,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold By\u003c\/th\u003e\n\u003ctd\u003ePiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufactured In\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.609\u003c\/td\u003e\n\u003ctd\u003e0.90 mm (0.035 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.610\u003c\/td\u003e\n\u003ctd\u003e1.00 mm (0.039 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.611\u003c\/td\u003e\n\u003ctd\u003e1.10 mm (0.043 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.612\u003c\/td\u003e\n\u003ctd\u003e1.20 mm (0.047 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.613\u003c\/td\u003e\n\u003ctd\u003e1.30 mm (0.051 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.614\u003c\/td\u003e\n\u003ctd\u003e1.40 mm (0.055 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.615\u003c\/td\u003e\n\u003ctd\u003e1.50 mm (0.059 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.616\u003c\/td\u003e\n\u003ctd\u003e1.60 mm (0.063 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.617\u003c\/td\u003e\n\u003ctd\u003e1.70 mm (0.067 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.618\u003c\/td\u003e\n\u003ctd\u003e1.80 mm (0.071 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.619\u003c\/td\u003e\n\u003ctd\u003e1.90 mm (0.075 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.620\u003c\/td\u003e\n\u003ctd\u003e2.00 mm (0.079 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.621\u003c\/td\u003e\n\u003ctd\u003e2.10 mm (0.083 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.622\u003c\/td\u003e\n\u003ctd\u003e2.20 mm (0.087 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.623\u003c\/td\u003e\n\u003ctd\u003e2.30 mm (0.091 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCarbide burs offer the longest service life compared with tungsten vanadium and high-speed steel burs.\u003c\/li\u003e\n\u003cli\u003eUse light, controlled hand pressure and let the bur do the cutting, especially in very hard alloys.\u003c\/li\u003e\n\u003cli\u003eOther Busch carbide shapes are available separately: Fig 414AU 90° hart bur (Part # BAU118.509) and Fig 413AU traditional setting bur (Part # BAU118.808AU).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":".90mm","offer_id":43579040530646,"sku":"BAU118.609","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.00mm","offer_id":43579040563414,"sku":"BAU118.610","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.10mm","offer_id":43579040596182,"sku":"BAU118.611","price":21.95,"currency_code":"USD","in_stock":false},{"title":"1.20mm","offer_id":43579040628950,"sku":"BAU118.612","price":21.95,"currency_code":"USD","in_stock":false},{"title":"1.30mm","offer_id":43579040661718,"sku":"BAU118.613","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.40mm","offer_id":43579040694486,"sku":"BAU118.614","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.50mm","offer_id":43579040727254,"sku":"BAU118.615","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.60mm","offer_id":43579040760022,"sku":"BAU118.616","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.70mm","offer_id":43579040792790,"sku":"BAU118.617","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.80mm","offer_id":43579040825558,"sku":"BAU118.618","price":21.95,"currency_code":"USD","in_stock":true},{"title":"1.90mm","offer_id":43579040858326,"sku":"BAU118.619","price":21.95,"currency_code":"USD","in_stock":true},{"title":"2.00mm","offer_id":43579040891094,"sku":"BAU118.620","price":21.95,"currency_code":"USD","in_stock":true},{"title":"2.10mm","offer_id":43579040923862,"sku":"BAU118.621","price":21.95,"currency_code":"USD","in_stock":true},{"title":"2.20mm","offer_id":43579040956630,"sku":"BAU118.622","price":21.95,"currency_code":"USD","in_stock":true},{"title":"2.30mm","offer_id":43579040989398,"sku":"BAU118.623","price":21.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/32-shank-90mm-2-30mmbusch-fig-446au-carbide-70-hart-burs-332-shank-90mm-2-30mm-by-the-piece-otto-frei.jpg?v=1719958714"},{"product_id":"busch-4203s-2-groove-carbide-twist-drills-3-32-shank-0-70mm-1-60mm","title":"Busch 4203S 2 Groove Carbide Twist Drills on 3\/32\" Shanks 0.7mm to 1.60mm","description":"\u003cp\u003eThe Busch 4203S carbide twist drills feature a 2-groove design engineered for drilling hard metals including steel, platinum, titanium, and hard alloys of gold and silver. Mounted on 3\/32\" shanks and available in ten sizes from 0.70mm to 1.60mm, these drills deliver outstanding service life that surpasses high-speed steel and standard tungsten carbide bits. The twin-groove construction promotes efficient chip evacuation, reduces heat buildup, and minimizes breakage during demanding drilling operations. These drills can also be used on mild steel. \u003cem\u003eNot for use with glass, ceramics, or gemstones.\u003c\/em\u003e Sold by the piece.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2-groove design expels chips more effectively for improved performance and longer tool life\u003c\/li\u003e\n\u003cli\u003eCarbide construction outlasts high-speed steel and standard tungsten carbide drills in hard jewelry metals\u003c\/li\u003e\n\u003cli\u003eSuitable for steel, platinum, titanium, and hard gold and silver alloys\u003c\/li\u003e\n\u003cli\u003eCompatible with mild steel\u003c\/li\u003e\n\u003cli\u003eUse of a coolant extends drill lifespan\u003c\/li\u003e\n\u003cli\u003eFor freehand use: recommended speed 5,000–9,000 RPM; a starting guide hole is advised\u003c\/li\u003e\n\u003cli\u003eFor drill press use: recommended speed 8,000–14,000 RPM\u003c\/li\u003e\n\u003cli\u003ePerform best in a drill press — excess leverage or canting can cause breakage\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNot for use with glass, ceramics, or gemstones\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSold by the piece\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eBusch 4203S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGroove Count\u003c\/th\u003e\n\u003ctd\u003e2 grooves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.70mm – 1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFreehand Speed Range\u003c\/th\u003e\n\u003ctd\u003e5,000 – 9,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrill Press Speed Range\u003c\/th\u003e\n\u003ctd\u003e8,000 – 14,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eIndividual piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDrill Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.427\u003c\/td\u003e\n\u003ctd\u003e0.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.428\u003c\/td\u003e\n\u003ctd\u003e0.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.429\u003c\/td\u003e\n\u003ctd\u003e0.90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.430\u003c\/td\u003e\n\u003ctd\u003e1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.431\u003c\/td\u003e\n\u003ctd\u003e1.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.432\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.433\u003c\/td\u003e\n\u003ctd\u003e1.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.434\u003c\/td\u003e\n\u003ctd\u003e1.40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.435\u003c\/td\u003e\n\u003ctd\u003e1.50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.436\u003c\/td\u003e\n\u003ctd\u003e1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBreakage can occur with excess leverage or canting — a drill press is recommended for best results.\u003c\/li\u003e\n\u003cli\u003eUsing a coolant will increase drill lifespan.\u003c\/li\u003e\n\u003cli\u003eWhen drilling freehand, use a starting guide hole to improve accuracy and reduce stress on the bit.\u003c\/li\u003e\n\u003cli\u003eThese drills are \u003cstrong\u003enot suitable\u003c\/strong\u003e for glass, ceramics, or gemstones.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":".70mm","offer_id":43579041022166,"sku":"BAU128.427","price":19.8,"currency_code":"USD","in_stock":true},{"title":".80mm","offer_id":43579041054934,"sku":"BAU128.428","price":19.8,"currency_code":"USD","in_stock":true},{"title":".90mm","offer_id":43579041087702,"sku":"BAU128.429","price":19.8,"currency_code":"USD","in_stock":true},{"title":"1.00mm","offer_id":43579041120470,"sku":"BAU128.430","price":19.8,"currency_code":"USD","in_stock":true},{"title":"1.10mm","offer_id":43579041153238,"sku":"BAU128.431","price":19.8,"currency_code":"USD","in_stock":true},{"title":"1.20mm","offer_id":43579041186006,"sku":"BAU128.432","price":19.8,"currency_code":"USD","in_stock":true},{"title":"1.30mm","offer_id":43579041218774,"sku":"BAU128.433","price":19.8,"currency_code":"USD","in_stock":false},{"title":"1.40mm","offer_id":43579041251542,"sku":"BAU128.434","price":19.8,"currency_code":"USD","in_stock":true},{"title":"1.50mm","offer_id":43579041284310,"sku":"BAU128.435","price":19.8,"currency_code":"USD","in_stock":true},{"title":"1.60mm","offer_id":43579041317078,"sku":"BAU128.436","price":19.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-4203s-2-groove-carbide-twist-drills-on-332-shanks-0-7mm-to-1-60mm-otto-frei.jpg?v=1719958715"},{"product_id":"busch-4205s-short-carbide-twist-drills-3-32-shank-0-70mm-1-00mm","title":"Busch 4205S 2 Groove Short Carbide Twist Drills 3\/32\" Shanks-0.70mm to 1.0mm-By the Piece","description":"\u003cp\u003eThe Busch 4205S short carbide twist drills are purpose-built for one critical application: drilling precise holes in hard metals for pavé diamond setting. The short length is intentional — pavé holes are relatively shallow, and longer drills are prone to breakage under torsional stress. These drills deliver the control and reliability that exacting stone-setting work demands.\u003c\/p\u003e\u003cp\u003eDeveloped through a partnership between Busch of Germany and the world's finest micro-diamond setters, the 4205S series has become the go-to solution for what was once a drill-breaking nightmare. These carbide twist drills are trusted by setters working for the most prestigious jewelry names in the industry.\u003c\/p\u003e\u003cp\u003eThe 2-groove design actively expels material from the hole during drilling, reducing heat buildup and extending drill life. Suitable for use on platinum, high-karat white alloys, titanium, steel, gold, silver, and other metal alloys. \u003cstrong\u003eNot for use with glass, ceramics, or gemstones.\u003c\/strong\u003e Also available as a kit of four — see part number BAU128.400.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eShort-length design minimizes torsional stress and reduces drill breakage during pavé setting work\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for use in hard metals including platinum, titanium, and high-karat white alloys\u003c\/li\u003e\n\u003cli\u003e2-groove geometry expels swarf from the hole, extending drill life and improving hole quality\u003c\/li\u003e\n\u003cli\u003eDeveloped in collaboration with professional micro-diamond setters and Busch of Germany\u003c\/li\u003e\n\u003cli\u003eSuitable for gold, silver, platinum, titanium, steel, and other metal alloys\u003c\/li\u003e\n\u003cli\u003eSold individually — choose only the size you need\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrill Type\u003c\/th\u003e\n\u003ctd\u003e2-Groove Short Carbide Twist Drill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eBusch 4205S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003ctd\u003e3,000–5,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eBy the piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNot For Use On\u003c\/th\u003e\n\u003ctd\u003eGlass, ceramics, or gemstones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eAvailable Options\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDrill Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.407\u003c\/td\u003e\n\u003ctd\u003e0.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.408\u003c\/td\u003e\n\u003ctd\u003e0.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.409\u003c\/td\u003e\n\u003ctd\u003e0.90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU128.410\u003c\/td\u003e\n\u003ctd\u003e1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":".70mm","offer_id":43579042201814,"sku":"BAU128.407","price":20.15,"currency_code":"USD","in_stock":true},{"title":".80mm","offer_id":43579042234582,"sku":"BAU128.408","price":20.15,"currency_code":"USD","in_stock":true},{"title":".90mm","offer_id":43579042267350,"sku":"BAU128.409","price":20.15,"currency_code":"USD","in_stock":true},{"title":"1.00mm","offer_id":43579042300118,"sku":"BAU128.410","price":20.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-4205s-2-groove-short-carbide-twist-drills-332-shanks-0-70mm-to-1-0mm-by-the-piece-otto-frei.jpg?v=1719958710"},{"product_id":"busch-5120-carbide-pave-setting-bur-kit-12pc","title":"Busch 5120 Carbide Pave Setting Bur Kit","description":"\u003cp\u003eMicrosetting in hard metal alloys like 18k white gold eats through regular tungsten vanadium burs quickly — and cutting steel or titanium with standard burs is virtually impossible. Busch developed the 5120 Carbide Pavé Setting Bur Kit specifically to handle these demanding materials. The carbide construction stays sharp longer and cuts cleaner, delivering outstanding results where conventional burs fall short. This kit contains the essential bur types needed to complete the full pavé setting sequence on hard metals, including steel, platinum, titanium, and hard alloys of gold and silver.\u003c\/p\u003e\u003cp\u003eThe three-step pavé workflow is built into the kit's composition: begin by drilling starter holes with the short carbide twist drills, open and shape the stone seats with the carbide ball burs, then form the prongs and separate the settings using the miniature carbide circular saws. Each bur type is represented in the sizes most commonly needed for pavé work, making this kit a practical starting point for setters working in challenging alloys.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCarbide construction stays sharp longer than tungsten vanadium burs in hard metals\u003c\/li\u003e\n\u003cli\u003eCuts cleanly in steel, platinum, titanium, and hard gold and silver alloys\u003c\/li\u003e\n\u003cli\u003eComplete three-step pavé workflow: drill, seat, and separate\/form prongs\u003c\/li\u003e\n\u003cli\u003eIncludes four twist drill sizes, six ball bur sizes, and two circular saw sizes\u003c\/li\u003e\n\u003cli\u003eShort carbide twist drills (Fig 4205S) for precise starter holes\u003c\/li\u003e\n\u003cli\u003eRound carbide ball burs (Fig 1AU) for opening and shaping stone seats\u003c\/li\u003e\n\u003cli\u003eCarbide circular saws (Fig 231F and 231FL) in two kerf widths for prong forming and setting separation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Reference\u003c\/th\u003e\n\u003ctd\u003eBusch 5120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Material\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Applications\u003c\/th\u003e\n\u003ctd\u003eSteel, platinum, titanium, hard gold alloys, hard silver alloys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Pieces\u003c\/th\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTwist Drill Sizes\u003c\/th\u003e\n\u003ctd\u003e0.7mm, 0.8mm, 0.9mm, 1.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBall Bur Sizes\u003c\/th\u003e\n\u003ctd\u003e1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircular Saw Sizes\u003c\/th\u003e\n\u003ctd\u003e2.3mm × 0.2mm (Fig 231F), 2.3mm × 0.3mm (Fig 231FL)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBAU128.407 – Busch Short Carbide Twist Drill Fig 4205S, 0.7mm\u003c\/li\u003e\n\u003cli\u003eBAU128.408 – Busch Short Carbide Twist Drill Fig 4205S, 0.8mm\u003c\/li\u003e\n\u003cli\u003eBAU128.409 – Busch Short Carbide Twist Drill Fig 4205S, 0.9mm\u003c\/li\u003e\n\u003cli\u003eBAU128.410 – Busch Short Carbide Twist Drill Fig 4205S, 1.0mm\u003c\/li\u003e\n\u003cli\u003eBAU118.180 – Busch Round Carbide Ball Bur Fig 1AU, 1.0mm\u003c\/li\u003e\n\u003cli\u003eBAU118.182 – Busch Round Carbide Ball Bur Fig 1AU, 1.2mm\u003c\/li\u003e\n\u003cli\u003eBAU118.184 – Busch Round Carbide Ball Bur Fig 1AU, 1.4mm\u003c\/li\u003e\n\u003cli\u003eBAU118.186 – Busch Round Carbide Ball Bur Fig 1AU, 1.6mm\u003c\/li\u003e\n\u003cli\u003eBAU118.188 – Busch Round Carbide Ball Bur Fig 1AU, 1.8mm\u003c\/li\u003e\n\u003cli\u003eBAU118.192 – Busch Round Carbide Ball Bur Fig 1AU, 2.2mm\u003c\/li\u003e\n\u003cli\u003eBAU118.231 – Busch Carbide Circular Saw Fig 231F, 2.3mm × 0.2mm\u003c\/li\u003e\n\u003cli\u003eBAU118.232 – Busch Carbide Circular Saw Fig 231FL, 2.3mm × 0.3mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43579647230166,"sku":"BC118.170","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-5120-carbide-pave-setting-bur-kit-otto-frei.jpg?v=1719958520"},{"product_id":"busch-fig-231s-thin-saw-edge-wheel-burs-2-30mm-6-pack","title":"Busch Fig. 231S Thin Saw Edge Wheel Burs 2.30mm-Pack of 6","description":"\u003cp\u003eBusch Burs — the most famous name in jewelers' burs. The Fig. 231S (European Fig. 231 \/ USA Fig. 231S) thin saw edge wheel bur is precision-engineered for demanding bench work. Made from tungsten vanadium steel to ultra-high precision tolerances, these burs are a trusted standard for professional jewelers and metalsmiths who require consistent, reliable cutting performance.\u003c\/p\u003e\u003cp\u003eThis listing is for the \u003cstrong\u003e2.30mm size\u003c\/strong\u003e, sold in a \u003cstrong\u003epack of 6\u003c\/strong\u003e. Note that sizes less than 4.0mm are sold in multiples of six only; sizes 4.0mm and above are available individually.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThin saw edge wheel bur profile for precise cutting\u003c\/li\u003e\n\u003cli\u003eMade from tungsten vanadium steel\u003c\/li\u003e\n\u003cli\u003eManufactured to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eAvailable in a wide size range — 2.30mm up to 10.00mm\u003c\/li\u003e\n\u003cli\u003eSizes under 4.0mm sold in packs of 6 only\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e231S (European Fig. 231 \/ USA Fig. 231S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eThin Saw Edge Wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e6 burs per pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43580515320022,"sku":"B118.676","price":20.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-231s-thin-saw-edge-wheel-burs-2-30mm-otto-frei.jpg?v=1719958096"},{"product_id":"busch-fig-115a-ambler-bur-1-80mm","title":"Busch Fig. 115A Ambler Burs 1.80mm","description":"\u003cp\u003eBusch is the most famous name in jewelers' burs, trusted by professional jewelers and metalsmiths worldwide. The Busch Fig. 115A Ambler bur delivers the precision and consistency that demanding bench work requires. Available in 1.80mm, this bur is sold individually.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFrom Busch, the most recognized name in professional jewelers' burs\u003c\/li\u003e\n\u003cli\u003eFig. 115A Ambler profile designed for precise cutting and shaping work\u003c\/li\u003e\n\u003cli\u003eAvailable in 1.80mm size\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e115A Ambler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e1.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eIndividual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582189699286,"sku":"B118.115","price":7.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-115a-ambler-burs-1-80mm-otto-frei.jpg?v=1719957192"},{"product_id":"busch-fig-155-cylinder-square-finishing-bur-kit-6-piece-0-90mm-1-80mm","title":"Busch Fig 155 Cylinder Square Finishing Bur Kit 6 Pieces. 0.90mm To 1.80mm","description":"\u003cp\u003eThis 6-piece kit brings together Busch Fig 155 Cylinder Square Finishing Burs in a graduated size range of 0.90mm to 1.80mm — a trusted selection for jewelers who need precise, consistent results when working with precious metals. Tungsten Vanadium steel construction gives these burs their hallmark performance: machine-made to ultra-high precision tolerances, they cut smoothly and cleanly with no chatter or drag. Each bur in this set is uniformly perfect, making them among the most trusted tools in the jewelry industry.\u003c\/p\u003e\u003cp\u003eThe set arrives ready to use, organized in a round plastic holder that keeps each size secure and accessible at the bench.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBusch Fig 155 Cylinder Square Finishing Bur profile\u003c\/li\u003e\n\u003cli\u003eTungsten Vanadium steel construction for smooth, clean cuts on precious metals\u003c\/li\u003e\n\u003cli\u003eMachine-made to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eNo chatter or drag during use\u003c\/li\u003e\n\u003cli\u003eSix graduated sizes from 0.90mm to 1.80mm included\u003c\/li\u003e\n\u003cli\u003e3\/32\" diameter shafts\u003c\/li\u003e\n\u003cli\u003eIncludes round plastic holder for bench organization\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eCylinder Square Finishing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003eFig 155\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.90mm – 1.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePieces\u003c\/th\u003e\n\u003ctd\u003e6 burs + 1 round plastic holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e119.248 Round Plastic Holder\u003c\/li\u003e\n\u003cli\u003eB118.493 Cylinder Finishing Bur – 0.90mm\u003c\/li\u003e\n\u003cli\u003eB118.494 Cylinder Finishing Bur – 1.00mm\u003c\/li\u003e\n\u003cli\u003eB118.495 Cylinder Finishing Bur – 1.20mm\u003c\/li\u003e\n\u003cli\u003eB118.496 Cylinder Finishing Bur – 1.40mm\u003c\/li\u003e\n\u003cli\u003eB118.497 Cylinder Finishing Bur – 1.60mm\u003c\/li\u003e\n\u003cli\u003eB118.498.5 Cylinder Finishing Bur – 1.80mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582567842006,"sku":"118.016","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-155-cylinder-square-finishing-bur-kit-6-pieces-0-90mm-to-1-80mm-otto-frei.jpg?v=1719956980"},{"product_id":"busch-fig-411c-fast-cut-concave-cone-cup-bur-kit-16-burs-1-00mm-2-30mm","title":"Busch Fig 411C Fast Cut Concave Cone Cup Bur Kit of 16 Burs 1.00mm - 2.30mm","description":"\u003cp\u003eCup burs are primarily used by jewelers for finishing and rounding the top of prongs during stone setting. The Busch Fig. 411C Fast Cut Concave Cone Cup Bur offers a distinct geometry compared to the standard Busch 77B concave cup bur — its \u003cem\u003econcave cone\u003c\/em\u003e shape produces a more sharply sloped, rounded profile when finishing prong tips.\u003c\/p\u003e\n\n\u003cp\u003eThis 16-piece kit is composed of Busch 411C Fast Cut Concave Cone Cup Burs in eight sizes ranging from 1.00mm to 2.30mm, with two burs of each size included. The burs are made from Tungsten Vanadium steel and feature 3\/32\" diameter shafts. The kit arrives organized in a round plastic holder for convenient bench storage and size selection.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConcave cone geometry creates a more sharply sloped rounded shape on prong tips versus traditional concave cup burs\u003c\/li\u003e\n\u003cli\u003eFast Cut design for efficient material removal during stone setting finishing work\u003c\/li\u003e\n\u003cli\u003eTungsten Vanadium steel construction for durability and cutting performance\u003c\/li\u003e\n\u003cli\u003eGerman steel hardening expertise applied to every bur\u003c\/li\u003e\n\u003cli\u003e3\/32\" diameter shafts for compatibility with standard flex-shaft handpieces and bur holders\u003c\/li\u003e\n\u003cli\u003eTwo burs per size — eight sizes included — for a total of 16 burs\u003c\/li\u003e\n\u003cli\u003eStored in a round plastic holder for organized bench access\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e411C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut Type\u003c\/th\u003e\n\u003ctd\u003eFast Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Shape\u003c\/th\u003e\n\u003ctd\u003eConcave Cone Cup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShaft Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1.00mm–2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e16 burs (2 of each size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Sizes\u003c\/th\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.413\u003c\/strong\u003e Busch 411C Fast Cut Cup Bur — 1.00mm (qty 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.414\u003c\/strong\u003e Busch 411C Fast Cut Cup Bur — 1.20mm (qty 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.415\u003c\/strong\u003e Busch 411C Fast Cut Cup Bur — 1.40mm (qty 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.416\u003c\/strong\u003e Busch 411C Fast Cut Cup Bur — 1.50mm (qty 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.417\u003c\/strong\u003e Busch 411C Fast Cut Cup Bur — 1.60mm (qty 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.418\u003c\/strong\u003e Busch 411C Fast Cut Cup Bur — 1.80mm (qty 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.419\u003c\/strong\u003e Busch 411C Fast Cut Cup Bur — 2.10mm (qty 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.420\u003c\/strong\u003e Busch 411C Fast Cut Cup Bur — 2.30mm (qty 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e119.248\u003c\/strong\u003e Round Plastic Holder (qty 1)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582572953814,"sku":"118.028","price":54.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-411c-fast-cut-concave-cone-cup-bur-kit-of-16-burs-1-00mm-2-30mm-otto-frei.jpg?v=1719956975"},{"product_id":"busch-fig-411t-twincut-concave-cone-cup-bur-kit-13-0-80mm-2-00mm","title":"Busch Fig 411T Twincut Concave Cone Cup Bur Kit of 13-0.80mm to 2.00mm","description":"\u003cp\u003eBusch burs are the most trusted name in jewelers' burs, engineered to ultra-high precision tolerances from tungsten vanadium steel. The Fig 411T Twincut Concave Cone Cup Bur is a versatile 3-in-1 design that combines concave cone geometry with twincut fluting—delivering clean, efficient cutting performance for stone setting, seat preparation, and detail work. This kit provides a complete size progression in a single purchase, ideal for jewelers who need precision across a broad range of stone and seat dimensions.\u003c\/p\u003e\u003cp\u003eThe kit includes one each of all 13 sizes from 0.80 mm to 2.00 mm, conveniently organized on a plastic stand for easy bench access and size identification.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBusch Fig 411T Twincut Concave Cone Cup profile—3-in-1 design for versatile cutting tasks\u003c\/li\u003e\n\u003cli\u003eTwincut fluting for smooth, efficient material removal\u003c\/li\u003e\n\u003cli\u003eManufactured from tungsten vanadium steel to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eComplete size range from 0.80 mm to 2.00 mm in 0.10 mm increments\u003c\/li\u003e\n\u003cli\u003e13 burs included, organized on a plastic storage stand\u003c\/li\u003e\n\u003cli\u003eConsistent geometry across all sizes for predictable, repeatable results\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Figure\u003c\/th\u003e\n\u003ctd\u003eFig 411T Twincut Concave Cone Cup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.80 mm – 2.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Increments\u003c\/th\u003e\n\u003ctd\u003e0.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e13 burs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003ePlastic stand included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.450\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-008 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e0.80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.451\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-009 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.452\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-010 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.453\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-011 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.454\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-012 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.455\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-013 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.456\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-014 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.457\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-015 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.458\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-016 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.459\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-017 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.460\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-018 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.461\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-019 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.462\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 411T-020 3-in-1 Cup Bur\u003c\/td\u003e\n\u003ctd\u003e2.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582573379798,"sku":"118.028T","price":54.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-411t-twincut-concave-cone-cup-bur-kit-of-13-0-80mm-to-2-00mm-otto-frei.jpg?v=1719956975"},{"product_id":"busch-fig-203hss-hss-twist-drill-kit-18pc-0-50-1-00mm-3-32-shank","title":"Busch Fig 203HSS High Speed Steel Twist Drill Kit 18 on 3\/32\" Shanks-3 Each- 0.50mm to 1.00mm","description":"\u003cp\u003eThe Busch Fig 203HSS High Speed Steel Twist Drill Kit delivers a professionally curated assortment of 18 drills — 3 each of six sizes ranging from 0.50mm to 1.00mm — all mounted on 3\/32\" shanks. Made in Germany by Busch, these HSS twist drills are engineered to stay sharp longer than conventional Tungsten Vanadium twist drills and, when used properly, offer significantly extended service life. The 3\/32\" shank diameter makes these drills immediately compatible with quick-change handpieces fitted with standard 3\/32\" collets, streamlining workflow at the bench. Having three of each size on hand means a broken drill mid-job won't interrupt production.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior edge retention over Tungsten Vanadium alternatives\u003c\/li\u003e\n\u003cli\u003eAssortment of 18 drills — 3 each of 6 sizes from 0.50mm to 1.00mm\u003c\/li\u003e\n\u003cli\u003e3\/32\" shanks compatible with standard quick-change handpiece collets\u003c\/li\u003e\n\u003cli\u003eGenuine German-made Busch quality\u003c\/li\u003e\n\u003cli\u003eRedundant quantity per size prevents workflow interruptions from breakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e203HSS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHigh Speed Steel (HSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.50mm – 1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Pieces\u003c\/th\u003e\n\u003ctd\u003e18 (3 of each size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.684\u003c\/td\u003e\n\u003ctd\u003eHSS Twist Drill 0.50mm on 3\/32\" Shank\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.685\u003c\/td\u003e\n\u003ctd\u003eHSS Twist Drill 0.60mm on 3\/32\" Shank\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.686\u003c\/td\u003e\n\u003ctd\u003eHSS Twist Drill 0.70mm on 3\/32\" Shank\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.687\u003c\/td\u003e\n\u003ctd\u003eHSS Twist Drill 0.80mm on 3\/32\" Shank\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.688\u003c\/td\u003e\n\u003ctd\u003eHSS Twist Drill 0.90mm on 3\/32\" Shank\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e128.689\u003c\/td\u003e\n\u003ctd\u003eHSS Twist Drill 1.00mm on 3\/32\" Shank\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582578360534,"sku":"118.086","price":112.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/118.086NEW_thumb_432a1458-adfb-4714-b561-eab222d79c1e.jpg?v=1776183692"},{"product_id":"busch-fig-203hss-twist-drill-kit-12pc-0-50-1-00mm-3-32-shank","title":"Busch Fig 203HSS High Speed Steel Twist Drill Kit of 12-3\/32\" Shanks-2 each- 0.50mm to 1.00mm","description":"\u003cp\u003eThe Busch Fig 203HSS High Speed Steel Twist Drill Kit gives professional jewelers and metalsmiths a practical assortment of precision micro drill sizes in a single package. Made in Germany by Busch, these High Speed Steel (HSS) twist drills stay sharp longer than conventional Tungsten Vanadium twist drills and, when used properly, deliver significantly extended service life. The kit includes 2 each of six sizes ranging from 0.50mm to 1.00mm — 12 drills total — so you have a reliable backup on hand if a fine drill breaks mid-job. All drills feature 3\/32\" diameter shanks for seamless use in quick-change handpieces fitted with standard 3\/32\" collets.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction stays sharp longer than Tungsten Vanadium twist drills\u003c\/li\u003e\n\u003cli\u003eGenuine German-made Busch quality for professional precision work\u003c\/li\u003e\n\u003cli\u003eKit includes 2 each of 6 sizes — 12 drills total — for built-in redundancy\u003c\/li\u003e\n\u003cli\u003eSize range spans 0.50mm to 1.00mm in 0.10mm increments\u003c\/li\u003e\n\u003cli\u003e3\/32\" diameter shanks are compatible with standard quick-change handpieces and collets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHigh Speed Steel (HSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.50mm – 1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Increment\u003c\/th\u003e\n\u003ctd\u003e0.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e12 drills (2 each of 6 sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e128.684 – Busch HSS Twist Drill 0.50mm on 3\/32\" Shank (qty. 2)\u003c\/li\u003e\n\u003cli\u003e128.685 – Busch HSS Twist Drill 0.60mm on 3\/32\" Shank (qty. 2)\u003c\/li\u003e\n\u003cli\u003e128.686 – Busch HSS Twist Drill 0.70mm on 3\/32\" Shank (qty. 2)\u003c\/li\u003e\n\u003cli\u003e128.687 – Busch HSS Twist Drill 0.80mm on 3\/32\" Shank (qty. 2)\u003c\/li\u003e\n\u003cli\u003e128.688 – Busch HSS Twist Drill 0.90mm on 3\/32\" Shank (qty. 2)\u003c\/li\u003e\n\u003cli\u003e128.689 – Busch HSS Twist Drill 1.00mm on 3\/32\" Shank (qty. 2)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582627414230,"sku":"128.699","price":78.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-203hss-high-speed-steel-twist-drill-kit-of-12-332-shanks-2-each-0-50mm-to-1-00mm-otto-frei.jpg?v=1719956938"},{"product_id":"busch-fig-411ct-twincut-concave-cone-cup-bur-kit-16-burs-0-80mm-2-30mm","title":"Busch Fig. 411CT Twincut Concave Cone Cup Bur Kit Set of 16 Burs 0.80mm-2.30mm","description":"\u003cp\u003eCup burs are primarily used by jewelers for finishing and rounding the tops of prongs during stone setting. This kit brings together the complete Busch Fig. 411CT series in a single convenient set, covering the full size range from 0.80 mm to 2.30 mm.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003econcave cone shape\u003c\/strong\u003e of the 411CT distinguishes it from the traditional concave 411T. Where the 411T leaves a more rounded profile on prongs, the 411CT's sharply sloped concave cone geometry produces a more defined, crisply finished result. The \u003cstrong\u003eTwincut (CT) blade geometry\u003c\/strong\u003e allows cut metal shavings to clear freely from the bur during use, keeping the cutting action smooth and efficient on prong tips.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eAlso available individually: the Busch 411T, a steel cup bur with a traditional concave shape that leaves a softer, more rounded finish on prongs by comparison.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote (updated 9\/21\/2023):\u003c\/strong\u003e Due to ongoing supply issues with Busch burs, this kit currently includes duplicates of sizes 014 and 016 and is missing sizes 012 and 015. The set remains a full 16-bur assortment.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eConcave cone shape for a sharply sloped, defined finish on prong tips\u003c\/li\u003e\n  \u003cli\u003eTwincut blade geometry promotes efficient chip clearance during cutting\u003c\/li\u003e\n  \u003cli\u003eCovers the complete 411CT size range: 0.80 mm – 2.30 mm\u003c\/li\u003e\n  \u003cli\u003eSet of 16 burs supplied in a plastic bur storage tray\u003c\/li\u003e\n  \u003cli\u003eIdeal for stone-setting prong finishing and rounding work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e411CT\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBur Style\u003c\/th\u003e\n\u003ctd\u003eConcave Cone Cup Bur\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBlade Type\u003c\/th\u003e\n\u003ctd\u003eTwincut (CT)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.80 mm – 2.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e16 burs per set\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003ePlastic bur tray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e16 Busch Fig. 411CT Twincut Concave Cone Cup Burs (0.80 mm – 2.30 mm), one per size*\u003c\/li\u003e\n  \u003cli\u003ePlastic bur storage tray\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSupply Notice (9\/21\/2023):\u003c\/strong\u003e Due to ongoing availability constraints, the current kit ships with duplicate burs in sizes 014 and 016 and does not include sizes 012 and 015. The total count remains 16 burs.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582807834838,"sku":"B118.411000","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-411ct-twincut-concave-cone-cup-bur-kit-set-of-16-burs-0-80mm-2-30mm-otto-frei.jpg?v=1719956848"},{"product_id":"busch-4203-4-groove-carbide-twist-drills-3-32-shank-0-70-1-60mm-kit-10","title":"Busch 4203 4 Groove Carbide Twist Drills on 3\/32\" Shanks .70mm-1.60mm - Kit of 10","description":"\u003cp\u003eThese Busch 4203 carbide twist drills feature a 4-groove design optimized for cutting softer organic materials such as coral and pearls. Mounted on 3\/32\" shanks, this kit provides ten drills ranging from 0.70mm to 1.60mm, offering a complete size progression for fine drilling work. The 4-groove geometry delivers outstanding service life when used correctly and within recommended operating parameters.\u003c\/p\u003e\n\n\u003cp\u003eFor best results and longest tool life, use these drills in a drill press. As with any drill, breakage can occur from excess leverage or canting. When drilling freehand, operate at \u003cstrong\u003e5,000–9,000 RPM\u003c\/strong\u003e; a starting guide hole is strongly recommended for freehand use. In a drill press, the recommended speed range is \u003cstrong\u003e8,000–14,000 RPM\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNot for use with glass, ceramics, or gemstones.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4-groove carbide construction optimized for softer materials\u003c\/li\u003e\n\u003cli\u003eRecommended for drilling coral and pearls\u003c\/li\u003e\n\u003cli\u003eOutstanding service life with proper use\u003c\/li\u003e\n\u003cli\u003eMounted on standard 3\/32\" shanks\u003c\/li\u003e\n\u003cli\u003eComplete size range from 0.70mm to 1.60mm in 0.10mm increments\u003c\/li\u003e\n\u003cli\u003eSuitable for use in a drill press or freehand handpiece\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eBusch 4203\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGroove Type\u003c\/th\u003e\n\u003ctd\u003e4-groove\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.70mm – 1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Materials\u003c\/th\u003e\n\u003ctd\u003eCoral, pearls, and other soft organic materials\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNot Recommended For\u003c\/th\u003e\n\u003ctd\u003eGlass, ceramics, gemstones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFreehand Speed\u003c\/th\u003e\n\u003ctd\u003e5,000–9,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrill Press Speed\u003c\/th\u003e\n\u003ctd\u003e8,000–14,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e10 drills\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eB128.707 – \u003cstrong\u003e0.70mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB128.708 – \u003cstrong\u003e0.80mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB128.709 – \u003cstrong\u003e0.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB128.710 – \u003cstrong\u003e1.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB128.711 – \u003cstrong\u003e1.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB128.712 – \u003cstrong\u003e1.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB128.713 – \u003cstrong\u003e1.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB128.714 – \u003cstrong\u003e1.40mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB128.715 – \u003cstrong\u003e1.50mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eB128.716 – \u003cstrong\u003e1.60mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUsing a starting guide hole is strongly recommended when drilling freehand.\u003c\/li\u003e\n\u003cli\u003eBreakage may occur if excess lateral force or canting is applied during use.\u003c\/li\u003e\n\u003cli\u003eDrill press use is recommended for maximum tool longevity.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582809637078,"sku":"B128.719","price":229.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-4203-4-groove-carbide-twist-drills-on-332-shanks-70mm-1-60mm-kit-of-10-otto-frei.jpg?v=1719956845"},{"product_id":"busch-fig-1au-carbide-round-burs-3-32-shank-kit-19-piece-0-50mm-2-30mm","title":"Busch Fig 1AU Carbide Round Burs 3\/32\" Shank - Complete Kit-Set of 19- 0.50mm to 2.30mm","description":"\u003cp\u003eCarbide burs are the longest-lasting burs available, outlasting both tungsten vanadium and high-speed burs. These Busch Fig 1AU Carbide Round Burs are engineered for use on the toughest metals — including platinum, titanium, and steel — and deliver exceptional service life even on standard gold alloys. Their durability makes them more cost-effective in the long run compared to conventional burs. Manufactured in Germany using state-of-the-art techniques, these round burs feature a powerful blade geometry typically reserved for steel tools. All shanks are 3\/32\".\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThese carbide round burs are used for the second step of pavé setting in hard metals.\u003c\/strong\u003e After using the Carbide Twist Drill 4205S to drill starter holes in the first step, use the appropriate size Fig 1AU Carbide Round Bur to enlarge the hole. This creates a secure mount for the roundest portion of the gem being set. The smallest diameter burs are also suited for cutting in difficult-to-reach corner areas and fine refinishing work.\u003c\/p\u003e\u003cp\u003eThis complete kit includes 19 burs ranging from 0.50mm to 2.30mm, covering the full range needed for professional pavé setting workflows.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCarbide construction for maximum durability — outlasts tungsten vanadium and high-speed steel burs\u003c\/li\u003e\n\u003cli\u003eSuitable for platinum, titanium, steel, and standard gold alloys\u003c\/li\u003e\n\u003cli\u003ePowerful blade geometry typically found only on steel tools\u003c\/li\u003e\n\u003cli\u003eIdeal for pavé setting: enlarges starter holes drilled in hard metals\u003c\/li\u003e\n\u003cli\u003eSmall diameter sizes suited for tight corners and fine refinishing\u003c\/li\u003e\n\u003cli\u003eManufactured in Germany\u003c\/li\u003e\n\u003cli\u003e3\/32\" shank fits standard flex shaft and rotary handpieces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eFig 1AU Carbide Round Bur\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003ctd\u003e2,000–10,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.50mm–2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e19 burs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Manufacture\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBAU118.175 — \u003cstrong\u003e0.50mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.176 — \u003cstrong\u003e0.60mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.177 — \u003cstrong\u003e0.70mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.178 — \u003cstrong\u003e0.80mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.179 — \u003cstrong\u003e0.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.180 — \u003cstrong\u003e1.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.181 — \u003cstrong\u003e1.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.182 — \u003cstrong\u003e1.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.183 — \u003cstrong\u003e1.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.184 — \u003cstrong\u003e1.40mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.185 — \u003cstrong\u003e1.50mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.186 — \u003cstrong\u003e1.60mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.187 — \u003cstrong\u003e1.70mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.188 — \u003cstrong\u003e1.80mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.189 — \u003cstrong\u003e1.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.190 — \u003cstrong\u003e2.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.191 — \u003cstrong\u003e2.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.192 — \u003cstrong\u003e2.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.193 — \u003cstrong\u003e2.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582811177174,"sku":"BAU118.170","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-1au-carbide-round-burs-332-shank-complete-kit-set-of-19-0-50mm-to-2-30mm-otto-frei.jpg?v=1719956845"},{"product_id":"busch-fig-414au-carbide-90-hart-bur-kit-15-piece-0-90mm-2-30mm-3-32-shank","title":"Busch Fig 414AU Carbide 90 Hart Bur-3\/32\" Shanks-Kit of 15- 0.90mm to 2.30mm","description":"\u003cp\u003eThe Busch Fig 414AU Carbide 90° Hart Bur Kit delivers a complete range of 15 sizes in a single convenient plastic box, purpose-built for cutting seats in prongs. Spanning 0.90mm to 2.30mm in 0.10mm increments, this kit gives bench jewelers and stone setters a comprehensive selection to handle a wide variety of prong work.\u003c\/p\u003e\u003cp\u003eCarbide construction makes these the longest-lasting burs in the Busch lineup, outlasting both tungsten vanadium and high-speed steel burs. Their advanced blade geometry — typically reserved for steel tooling — is engineered to power through the toughest metals, including platinum, titanium, and steel, while also delivering exceptional service life on standard gold alloys. The result is a lower cost-per-use compared to conventional burs.\u003c\/p\u003e\u003cp\u003eAll shanks measure 3\/32\" for broad compatibility with standard flex-shaft handpieces and rotary tools. Also available individually by the piece. Related sets include the Fig 446AU 70° Hart Bur kit (BAU118.600) and the Fig 413AU Traditional Setting Bur kit (BAU118.835).\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e90° hart bur angle optimized for cutting prong seats\u003c\/li\u003e\n\u003cli\u003eCarbide construction outlasts tungsten vanadium and high-speed steel burs\u003c\/li\u003e\n\u003cli\u003eAdvanced blade geometry for powerful, clean cutting action\u003c\/li\u003e\n\u003cli\u003eSuitable for platinum, titanium, steel, and standard gold alloys\u003c\/li\u003e\n\u003cli\u003e15 sizes from 0.90mm to 2.30mm in 0.10mm increments\u003c\/li\u003e\n\u003cli\u003eStored and sold in a plastic box for organized bench storage\u003c\/li\u003e\n\u003cli\u003eMade in Germany\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e414AU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eHart Bur, 90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.90mm – 2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e15 burs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003ctd\u003e2,000 – 10,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003ePlastic storage box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBAU118.509 — \u003cstrong\u003e0.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.510 — \u003cstrong\u003e1.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.511 — \u003cstrong\u003e1.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.512 — \u003cstrong\u003e1.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.513 — \u003cstrong\u003e1.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.514 — \u003cstrong\u003e1.40mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.515 — \u003cstrong\u003e1.50mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.516 — \u003cstrong\u003e1.60mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.517 — \u003cstrong\u003e1.70mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.518 — \u003cstrong\u003e1.80mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.519 — \u003cstrong\u003e1.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.520 — \u003cstrong\u003e2.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.521 — \u003cstrong\u003e2.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.522 — \u003cstrong\u003e2.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.523 — \u003cstrong\u003e2.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eIndividual burs from this kit are also available for purchase by the piece. Related carbide bur kits include the Fig 446AU 70° Hart Bur set (BAU118.600) and the Fig 413AU Traditional Setting Bur set (BAU118.835).\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582812225750,"sku":"BAU118.500","price":298.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-414au-carbide-90-hart-bur-332-shanks-kit-of-15-0-90mm-to-2-30mm-otto-frei.jpg?v=1719956845"},{"product_id":"busch-fig-446au-carbide-70-degree-hart-burs-3-32-shank-0-90-2-30mm-set-15","title":"Busch Fig 446AU Carbide 70 Degree Hart Burs on 3\/32\" Shanks-Set of 15 .90mm-2.30mm","description":"\u003cp\u003eThe Busch Fig 446AU Carbide 70 Degree Hart Burs are precision-engineered tools designed specifically for cutting seats in prongs. This complete kit includes 15 burs in a plastic storage box, covering sizes from 0.90mm through 2.30mm in 0.10mm increments — giving jewelers and stone setters the full range needed for consistent, accurate prong seat work.\u003c\/p\u003e\n\n\u003cp\u003eCarbide burs are the longest-lasting burs available, outlasting both tungsten vanadium and high-speed steel burs. They perform exceptionally on the toughest metals — including platinum, titanium, and steel — while also delivering dramatically extended service life on standard gold alloys. Their advanced blade geometry, typically found only on steel tools, is achieved through state-of-the-art manufacturing in Germany.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e70-degree hart bur geometry engineered for precise prong seat cutting\u003c\/li\u003e\n\u003cli\u003eCarbide construction outlasts tungsten vanadium and high-speed steel burs\u003c\/li\u003e\n\u003cli\u003eSuitable for platinum, titanium, steel, and all standard gold alloys\u003c\/li\u003e\n\u003cli\u003eAdvanced blade geometry normally reserved for steel tooling\u003c\/li\u003e\n\u003cli\u003eManufactured in Germany using state-of-the-art production techniques\u003c\/li\u003e\n\u003cli\u003eComplete set of 15 burs stored in a plastic box for organized access\u003c\/li\u003e\n\u003cli\u003eAlso available individually by the piece\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e446AU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eHart (70 Degree)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.90mm – 2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e15 burs (one per size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003ctd\u003e2,000 – 10,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003ePlastic box included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBAU118.609 — \u003cstrong\u003e0.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.610 — \u003cstrong\u003e1.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.611 — \u003cstrong\u003e1.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.612 — \u003cstrong\u003e1.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.613 — \u003cstrong\u003e1.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.614 — \u003cstrong\u003e1.40mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.615 — \u003cstrong\u003e1.50mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.616 — \u003cstrong\u003e1.60mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.617 — \u003cstrong\u003e1.70mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.618 — \u003cstrong\u003e1.80mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.619 — \u003cstrong\u003e1.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.620 — \u003cstrong\u003e2.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.621 — \u003cstrong\u003e2.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.622 — \u003cstrong\u003e2.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.623 — \u003cstrong\u003e2.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eRelated Busch carbide bur sets are also available: Fig 414AU 90-degree hart burs (part number BAU118.500) and Fig 413AU traditional setting burs (part number BAU118.835). All individual sizes from this kit are also sold separately.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582813634774,"sku":"BAU118.600","price":298.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-446au-carbide-70-degree-hart-burs-on-332-shanks-set-of-15-90mm-2-30mm-otto-frei.jpg?v=1719956845"},{"product_id":"busch-fig-4205s-short-carbide-twist-drills-3-32-shank-0-70-1-00mm-kit-4","title":"Busch Fig 4205S 2 Groove Short Carbide Twist Drill on 3\/32\" Shanks .70mm-1.00mm  - Kit of 4","description":"\u003cp\u003e\u003cstrong\u003eRecommended for Pavé Work on Hard Metals\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese Busch Fig 4205S short carbide twist drills are engineered for one precise application: drilling accurate holes in hard metals for pavé diamond setting. The short length is intentional — pavé holes are relatively shallow, and longer drills are prone to breaking under torsional stress. The 2-groove design actively expels material from the hole during drilling, extending drill life and maintaining accuracy.\u003c\/p\u003e\u003cp\u003eDeveloped through a partnership between Busch of Germany and the world's finest micro-diamond setters, these drills are the trusted solution for professionals who set stones for leading jewelry houses. Use them on hard metals including platinum, high-karat white gold alloys, titanium, and steel, as well as gold, silver, and other alloys.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eShort-length design reduces torsional stress and minimizes breakage during shallow pavé hole drilling\u003c\/li\u003e\n\u003cli\u003e2-groove geometry expels swarf from the hole to extend drill life and maintain clean, precise results\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction handles hard metals including platinum, titanium, and steel\u003c\/li\u003e\n\u003cli\u003eConsistent 3\/32\" shank fits standard flex shaft handpieces and drill chucks\u003c\/li\u003e\n\u003cli\u003eSuitable for gold, silver, platinum, high-karat white gold alloys, titanium, and steel\u003c\/li\u003e\n\u003cli\u003eNot for use with glass, ceramics, or gemstones\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003eBusch Fig 4205S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGroove Design\u003c\/th\u003e\n\u003ctd\u003e2-groove\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed\u003c\/th\u003e\n\u003ctd\u003e3,000–5,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e4 drills per kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003ePavé diamond setting on hard metals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eThis kit of 4 includes one drill in each of the following sizes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBAU128.407 — \u003cstrong\u003e0.70mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.408 — \u003cstrong\u003e0.80mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.409 — \u003cstrong\u003e0.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.410 — \u003cstrong\u003e1.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eThese carbide twist drills are also available for purchase individually by part number. Not recommended for use on glass, ceramics, or gemstones.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582815076566,"sku":"BAU128.400","price":76.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-4205s-2-groove-short-carbide-twist-drill-on-332-shanks-70mm-1-00mm-kit-of-4-otto-frei.jpg?v=1719956845"},{"product_id":"busch-fig-152-flame-finishing-bur-kit-5-piece-1mm-2-30mm","title":"Busch Fig 152 Flame Finishing Bur Kit 5 Pieces. 1.0mm To 2.30mm","description":"\u003cp\u003eThe Busch Fig 152 Flame Finishing Bur Kit delivers five precision-ground Tungsten Vanadium flame shape finishing burs in a convenient round plastic holder. Busch burs are among the most widely used in the jewelry industry, machine made to ultra-high precision tolerances that ensure each bur is uniformly perfect. Tungsten Vanadium steel construction allows these flame finishers to cut precious metal smoothly and cleanly with no chatter or drag — making them an essential tool for any professional jeweler or metalsmith.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBusch Fig 152 flame shape finishing burs in Tungsten Vanadium steel\u003c\/li\u003e\n\u003cli\u003eMachine made to ultra-high precision tolerances for uniform, consistent performance\u003c\/li\u003e\n\u003cli\u003eCuts precious metal smoothly and cleanly with no chatter or drag\u003c\/li\u003e\n\u003cli\u003eFive burs covering a size range of 1.00mm – 2.30mm\u003c\/li\u003e\n\u003cli\u003e3\/32\" diameter shafts for standard flex shaft and rotary tool compatibility\u003c\/li\u003e\n\u003cli\u003eIncludes a round plastic holder to keep burs organized and protected\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Style\u003c\/th\u003e\n\u003ctd\u003eFlame Finishing (Fig 152)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Vanadium Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1.00mm – 2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePieces Included\u003c\/th\u003e\n\u003ctd\u003e5 burs + 1 round plastic holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.691\u003c\/strong\u003e – Busch Flame Finish Bur, 1.00mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.692\u003c\/strong\u003e – Busch Flame Finish Bur, 1.20mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.693\u003c\/strong\u003e – Busch Flame Finish Bur, 1.40mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.695\u003c\/strong\u003e – Busch Flame Finish Bur, 1.80mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.697\u003c\/strong\u003e – Busch Flame Finish Bur, 2.30mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e119.248\u003c\/strong\u003e – Round Plastic Holder\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582818451670,"sku":"118.015","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-152-flame-finishing-bur-kit-5-pieces-1-0mm-to-2-30mm-otto-frei.jpg?v=1719956843"},{"product_id":"busch-fig-411ccc-clean-cut-concave-cup-bur-kit-20-piece-1-00-2-30mm","title":"Busch Fig. 411CCC Clean Cut Concave Cup Kit of 20 Burs 1.00mm-2.30mm","description":"\u003cp\u003e\u003cstrong\u003eBusch Fig. 411CCC Clean Cut Concave Cup burs\u003c\/strong\u003e are among the most precise jeweler's burs available, engineered to ultra-high tolerances from tungsten vanadium steel. This kit spans a full range of sizes from 1.00 mm to 2.30 mm, giving bench jewelers and stone setters a comprehensive selection of cup burs in a single, organized plastic container.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCCC\u003c\/strong\u003e stands for \u003cstrong\u003eC\u003c\/strong\u003elean \u003cstrong\u003eC\u003c\/strong\u003eut \u003cstrong\u003eC\u003c\/strong\u003eoncave. \u003cstrong\u003eClean Cut\u003c\/strong\u003e means the cutting edges are open, allowing metal shavings to be easily expelled from inside the bur without marring the surface being cut. \u003cstrong\u003eConcave\u003c\/strong\u003e refers to the traditional cup bur shape that leaves a rounded, finished top on the prong—ideal for prong finishing and setting work. A Concave Cone shape is also available separately in the Busch 411C and Busch 411CT bur styles.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTungsten vanadium steel construction machined to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eClean Cut geometry keeps cutting edges open for efficient chip expulsion\u003c\/li\u003e\n\u003cli\u003eConcave cup profile produces a smooth, rounded prong top\u003c\/li\u003e\n\u003cli\u003eCovers 10 sizes from 1.00 mm through 2.30 mm in a single kit\u003c\/li\u003e\n\u003cli\u003e2 burs of each size included—20 burs total\u003c\/li\u003e\n\u003cli\u003eStored and supplied in an organized plastic container\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e411CCC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStyle\u003c\/th\u003e\n\u003ctd\u003eClean Cut Concave Cup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1.00 mm – 2.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e20 burs (2 of each size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSizes Included\u003c\/th\u003e\n\u003ctd\u003e10 sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003ePlastic container\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eB118.421 — Busch 411CCC \u003cstrong\u003e1.00 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003cli\u003eB118.421.5 — Busch 411CCC \u003cstrong\u003e1.10 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003cli\u003eB118.422 — Busch 411CCC \u003cstrong\u003e1.20 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003cli\u003eB118.422.5 — Busch 411CCC \u003cstrong\u003e1.30 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003cli\u003eB118.423 — Busch 411CCC \u003cstrong\u003e1.40 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003cli\u003eB118.423.5 — Busch 411CCC \u003cstrong\u003e1.50 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003cli\u003eB118.424 — Busch 411CCC \u003cstrong\u003e1.60 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003cli\u003eB118.425 — Busch 411CCC \u003cstrong\u003e1.80 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003cli\u003eB118.426 — Busch 411CCC \u003cstrong\u003e2.10 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003cli\u003eB118.426.5 — Busch 411CCC \u003cstrong\u003e2.30 mm\u003c\/strong\u003e (qty 2)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eThe Concave Cone cup bur shape is available separately in the \u003cem\u003eBusch Fig. 411C\u003c\/em\u003e and \u003cem\u003eBusch Fig. 411CT\u003c\/em\u003e styles. Individual 411CCC burs in these sizes are also available separately from OttoFrei.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582856233174,"sku":"118.029","price":74.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-411ccc-clean-cut-concave-cup-kit-of-20-burs-1-00mm-2-30mm-otto-frei.jpg?v=1719956830"},{"product_id":"busch-fig-415-knife-edge-bur-kit-11-piece-1-0-2-0mm","title":"Busch Fig. 415 Knife Edge Bur Kit of 11 - 1.0mm - 2.0mm","description":"\u003cp\u003eThe Busch Fig. 415 Knife Edge Bur Kit contains one each of 11 burs ranging from 1.0mm to 2.0mm, packaged together in a plastic storage container. This assortment gives stone setters a complete progression of sizes in a single purchase, eliminating the need to source each bur individually.\u003c\/p\u003e\u003cp\u003eBusch Fig. 415 burs — also known as Lens burs — feature a \u003cstrong\u003e55-degree angle\u003c\/strong\u003e that produces narrow, precise cuts in precious metals. This geometry is especially well-suited to stone setting work where controlled material removal and clean seat edges are critical. The burs are manufactured from \u003cstrong\u003etungsten vanadium steel\u003c\/strong\u003e to ultra-high precision tolerances, ensuring consistent performance and long tool life.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eKit of 11 burs covering sizes 1.0mm through 2.0mm in 0.1mm increments\u003c\/li\u003e\n\u003cli\u003eFig. 415 knife edge (lens) profile with 55-degree cutting angle\u003c\/li\u003e\n\u003cli\u003eDesigned for narrow, precise cuts in precious metals — ideal for stone setting\u003c\/li\u003e\n\u003cli\u003eMade from tungsten vanadium steel to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003ePackaged in a plastic storage container to keep burs organized\u003c\/li\u003e\n\u003cli\u003eAlso referred to as Busch 415 Lens burs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003eFig. 415\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStyle\u003c\/th\u003e\n\u003ctd\u003eKnife Edge (Lens)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCutting Angle\u003c\/th\u003e\n\u003ctd\u003e55 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1.0mm – 2.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Increment\u003c\/th\u003e\n\u003ctd\u003e0.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e11 burs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003ePlastic container\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.751\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.752\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.753\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.754\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.755\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.756\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.757\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.758\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.759\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.760\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e1.90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.761\u003c\/td\u003e\n\u003ctd\u003eBusch Knife Edge Bur\u003c\/td\u003e\n\u003ctd\u003e2.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43582861213910,"sku":"118.030","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-415-knife-edge-bur-kit-of-11-1-0mm-2-0mm-otto-frei.jpg?v=1719956830"},{"product_id":"busch-fig-413-setting-bur-kit-21-piece-1-00mm-8-00mm","title":"Busch Fig 413 Setting Bur Kit- Complete Kit of 21-1.00mm to 8.00mm","description":"\u003cp\u003eThe Busch Fig 413 Setting Bur Kit is the complete assortment of Fig 413 setting burs, spanning every size from 1.00 mm through 8.00 mm. Presented in a wood box, this set gives jewelers and stone setters instant access to all 21 sizes in a single, organized kit — eliminating the need to source individual burs one at a time.\u003c\/p\u003e\u003cp\u003eEach bur in this set is crafted from Busch Tungsten Vanadium steel, manufactured using the most modern production equipment combined with German steel hardening expertise. The result is exceptional cutting performance, durability, and consistency that professionals rely on. These burs are among the best-selling in the world for good reason.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete set of all 21 sizes of the Busch Fig 413 setting bur\u003c\/li\u003e\n\u003cli\u003eSize range: 1.00 mm – 8.00 mm\u003c\/li\u003e\n\u003cli\u003eMade from Busch Tungsten Vanadium steel\u003c\/li\u003e\n\u003cli\u003eProduced with modern manufacturing equipment and German steel hardening techniques\u003c\/li\u003e\n\u003cli\u003e3\/32\" diameter shafts for broad compatibility with standard handpieces\u003c\/li\u003e\n\u003cli\u003eStored and presented in a wood box for organization and protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Style\u003c\/th\u003e\n\u003ctd\u003eFig 413 Setting Bur\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Vanadium Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1.00 mm – 8.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Pieces\u003c\/th\u003e\n\u003ctd\u003e21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eWood box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eOne each of all 21 sizes: 1.00 mm, 1.25 mm, 1.50 mm, 1.75 mm, 2.00 mm, 2.20 mm, 2.50 mm, 2.75 mm, 3.00 mm, 3.25 mm, 3.50 mm, 3.75 mm, 4.00 mm, 4.25 mm, 4.50 mm, 4.75 mm, 5.00 mm, 5.50 mm, 6.00 mm, 7.00 mm, and 8.00 mm — all stored in a wood box.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43583291785430,"sku":"B118.719","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-413-setting-bur-kit-complete-kit-of-21-1-00mm-to-8-00mm-otto-frei.jpg?v=1719956700"},{"product_id":"busch-fig-105-023-round-allport-bur-2-30mm","title":"Busch Fig. 105-023 Allport Burs 2.30mm","description":"\u003cp\u003eThe Busch Fig. 105-023 Allport Bur is a steel rotary bur designed for precision work in jewelry making and metalsmithing. With a 2.30mm cutting diameter and a 64.5mm shank length, this round allport bur delivers consistent, controlled material removal in demanding bench applications.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRound allport bur profile for precise cutting and shaping\u003c\/li\u003e\n\u003cli\u003eSteel construction for durability and consistent performance\u003c\/li\u003e\n\u003cli\u003e2.30mm cutting diameter suited to fine detail work\u003c\/li\u003e\n\u003cli\u003e64.5mm shank length provides secure tool holding\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e105-023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eRound Allport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCutting Diameter\u003c\/th\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Length\u003c\/th\u003e\n\u003ctd\u003e64.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43583618285782,"sku":"B118.593","price":10.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-105-023-allport-burs-2-30mm-otto-frei.jpg?v=1719956589"},{"product_id":"busch-fig-105-031-round-allport-bur-3-10mm","title":"Busch Fig. 105-031 Allport Burs 3.10mm","description":"\u003cp\u003eThe Busch Fig. 105-031 Allport Bur is a steel round bur designed for professional jewelers and metalsmiths requiring precise, controlled cutting. With a 3.10mm cutting diameter and a 64.5mm shank length, this bur is built to the exacting standards Busch is known for in the bench tool industry.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRound allport bur profile for smooth, accurate seat cutting\u003c\/li\u003e\n\u003cli\u003e3.10mm cutting diameter for fine, detail-oriented work\u003c\/li\u003e\n\u003cli\u003eSteel construction for durability and consistent performance\u003c\/li\u003e\n\u003cli\u003e64.5mm shank length provides secure grip in standard bur holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e105-031\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eAllport Bur\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProfile\u003c\/th\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCutting Diameter\u003c\/th\u003e\n\u003ctd\u003e3.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Length\u003c\/th\u003e\n\u003ctd\u003e64.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43583620022486,"sku":"B118.594","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-105-031-allport-burs-3-10mm-otto-frei.jpg?v=1719956589"},{"product_id":"busch-fig-105-040-round-allport-bur-4mm","title":"Busch Fig. 105-040 Allport Burs 4.00mm","description":"\u003cp\u003eThe Busch Fig. 105-040 Allport Bur is a precision steel bur designed for professional jewelers and metalsmiths requiring consistent, reliable cutting performance. With a 4.00mm cutting diameter and a 64.5mm shank length, this round allport-style bur is well suited for detailed metalwork where accuracy and control are essential. Busch burs are a trusted standard in professional bench work, and this figure delivers the quality expected from that lineage.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRound allport bur profile for precise cutting and shaping\u003c\/li\u003e\n\u003cli\u003e4.00mm cutting diameter\u003c\/li\u003e\n\u003cli\u003e64.5mm shank length for secure tool holding\u003c\/li\u003e\n\u003cli\u003eSteel construction for durability and consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e105-040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCutting Diameter\u003c\/th\u003e\n\u003ctd\u003e4.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Length\u003c\/th\u003e\n\u003ctd\u003e64.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Style\u003c\/th\u003e\n\u003ctd\u003eRound Allport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43583621202134,"sku":"B118.595","price":16.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-105-040-allport-burs-4-00mm-otto-frei.jpg?v=1719956589"},{"product_id":"busch-fig-413-setting-bur-kit-17-pieces-1-00mm-5-00mm","title":"Busch Fig 413 Setting Bur Kit 17 Pieces. 1.00mm to 5.00mm","description":"\u003cp\u003eThe \u003cstrong\u003eBusch Fig 413 Setting Bur Kit\u003c\/strong\u003e brings together 17 pieces of German-made Tungsten Vanadium setting burs in a single, organized set — covering sizes 1.00mm through 5.00mm in 0.25mm increments. Busch Fig 413 setting burs are among the most widely used burs in the jewelry industry, trusted by professional stone setters for their consistency, precision, and clean cutting performance.\u003c\/p\u003e\u003cp\u003eManufactured to ultra-high precision tolerances using advanced machinery and German steel hardening expertise, these Tungsten Vanadium burs cut precious metal smoothly and cleanly with no chatter or drag. Each bur in the set is uniformly perfect, making them the dependable choice for repetitive stone-setting work across a wide range of stone diameters.\u003c\/p\u003e\u003cp\u003eThe kit arrives in a round plastic holder that keeps all 17 burs organized and protected at the bench.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBusch Fig 413 setting burs, the most popular setting bur style in the jewelry industry\u003c\/li\u003e\n\u003cli\u003eGerman-made Tungsten Vanadium steel construction for durability and consistent cutting performance\u003c\/li\u003e\n\u003cli\u003eMachine-made to ultra-high precision tolerances — uniformly perfect from bur to bur\u003c\/li\u003e\n\u003cli\u003eCuts precious metal smoothly and cleanly with no chatter or drag\u003c\/li\u003e\n\u003cli\u003e17-piece set covers sizes 1.00mm through 5.00mm in 0.25mm increments\u003c\/li\u003e\n\u003cli\u003eIncludes a round plastic holder to keep burs organized at the bench\u003c\/li\u003e\n\u003cli\u003e3\/32\" diameter shanks for use with standard flex shaft handpieces and rotary tools\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Style\u003c\/th\u003e\n\u003ctd\u003eFig 413 Setting Bur\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Vanadium Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1.00mm – 5.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Increments\u003c\/th\u003e\n\u003ctd\u003e0.25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePieces Included\u003c\/th\u003e\n\u003ctd\u003e17 burs + 1 round plastic holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eB118.720 – Busch Fig 413 Setting Bur, 1.00mm\u003c\/li\u003e\n\u003cli\u003eB118.721 – Busch Fig 413 Setting Bur, 1.25mm\u003c\/li\u003e\n\u003cli\u003eB118.722 – Busch Fig 413 Setting Bur, 1.50mm\u003c\/li\u003e\n\u003cli\u003eB118.723 – Busch Fig 413 Setting Bur, 1.75mm\u003c\/li\u003e\n\u003cli\u003eB118.724 – Busch Fig 413 Setting Bur, 2.00mm\u003c\/li\u003e\n\u003cli\u003eB118.725 – Busch Fig 413 Setting Bur, 2.25mm\u003c\/li\u003e\n\u003cli\u003eB118.726 – Busch Fig 413 Setting Bur, 2.50mm\u003c\/li\u003e\n\u003cli\u003eB118.727 – Busch Fig 413 Setting Bur, 2.75mm\u003c\/li\u003e\n\u003cli\u003eB118.728 – Busch Fig 413 Setting Bur, 3.00mm\u003c\/li\u003e\n\u003cli\u003eB118.729 – Busch Fig 413 Setting Bur, 3.25mm\u003c\/li\u003e\n\u003cli\u003eB118.730 – Busch Fig 413 Setting Bur, 3.50mm\u003c\/li\u003e\n\u003cli\u003eB118.731 – Busch Fig 413 Setting Bur, 3.75mm\u003c\/li\u003e\n\u003cli\u003eB118.732 – Busch Fig 413 Setting Bur, 4.00mm\u003c\/li\u003e\n\u003cli\u003eB118.733 – Busch Fig 413 Setting Bur, 4.25mm\u003c\/li\u003e\n\u003cli\u003eB118.734 – Busch Fig 413 Setting Bur, 4.50mm\u003c\/li\u003e\n\u003cli\u003eB118.735 – Busch Fig 413 Setting Bur, 4.75mm\u003c\/li\u003e\n\u003cli\u003eB118.736 – Busch Fig 413 Setting Bur, 5.00mm\u003c\/li\u003e\n\u003cli\u003e119.248 – Round Plastic Holder\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43583622414550,"sku":"118.004BUSCH","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-413-setting-bur-kit-17-pieces-1-00mm-to-5-00mm-otto-frei.jpg?v=1719956587"},{"product_id":"busch-fig-77-tungsten-vanadium-twist-drills-kit-12-05mm-160mm-3-32-shank","title":"Busch Fig 77 Tungsten Vanadium Twist Drills Kit of 12- On 3\/32\" Shanks-0.5mm - 1.60mm","description":"\u003cp\u003eBusch is the most famous name in jewelers' burs and drills. These Fig 77 tungsten vanadium steel twist drills are manufactured to ultra-high precision tolerances, making them a reliable choice for professional jewelers and metalsmiths. Mounted on 3\/32\" (2.35mm) shanks, they are compatible with standard flex-shaft handpieces and drill chucks for fast, easy bit changes. This assortment spans 0.5mm to 1.60mm, covering the most frequently needed drilling sizes in a single convenient kit.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTungsten vanadium steel construction for durability and precision\u003c\/li\u003e\n\u003cli\u003eManufactured to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eMounted on 3\/32\" (2.35mm) shanks for compatibility with standard handpieces\u003c\/li\u003e\n\u003cli\u003eKit of 12 drills spanning 0.5mm – 1.60mm in graduated sizes\u003c\/li\u003e\n\u003cli\u003eFig 77 twist drill geometry for clean, accurate holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\" (2.35mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrill Material\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003eFig 77\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.5mm – 1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e12 drills\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eThis kit includes one each of the following Busch twist drills:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDrill Diameter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.584\u003c\/td\u003e\n\u003ctd\u003e0.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.585\u003c\/td\u003e\n\u003ctd\u003e0.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.586\u003c\/td\u003e\n\u003ctd\u003e0.7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.587\u003c\/td\u003e\n\u003ctd\u003e0.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.588\u003c\/td\u003e\n\u003ctd\u003e0.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.589\u003c\/td\u003e\n\u003ctd\u003e1.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.590\u003c\/td\u003e\n\u003ctd\u003e1.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.591\u003c\/td\u003e\n\u003ctd\u003e1.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.592\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.593\u003c\/td\u003e\n\u003ctd\u003e1.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.601\u003c\/td\u003e\n\u003ctd\u003e1.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.602\u003c\/td\u003e\n\u003ctd\u003e1.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43583679955158,"sku":"B128.584KIT","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-77-tungsten-vanadium-twist-drills-kit-of-12-on-332-shanks-0-5mm-1-60mm-otto-frei.jpg?v=1719956550"},{"product_id":"busch-16s12-fig-6-bud-bur-kit-12-0-60-2-50mm","title":"Busch 16S12 Fig 6 Bud Bur Kit of 12 - 0.60 mm to 2.50 mm","description":"\u003cp\u003eThe Busch 16S12 Fig. 6 Bud Bur Kit delivers a factory-assembled set of 12 genuine Busch bud burs, covering a precise size range of 0.60 mm to 2.50 mm on 3\/32\" shanks. Busch is among the most respected names in jewelers' burs, and these Fig. 6 bud burs uphold that reputation with ultra-high precision tolerances and consistent performance across every size in the set.\u003c\/p\u003e\n\u003cp\u003eCrafted from tungsten vanadium steel, each bur in this kit is built for the exacting demands of professional jewelers and metalsmiths. The graduated size range makes this kit an efficient solution for tasks requiring progressively sized bud burs without sourcing individual pieces.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Busch Fig. 6 bud burs — factory-assembled kit\u003c\/li\u003e\n\u003cli\u003eTungsten vanadium steel construction for precision and durability\u003c\/li\u003e\n\u003cli\u003eManufactured to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003e3\/32\" shank fits standard flex shaft handpieces and rotary tools\u003c\/li\u003e\n\u003cli\u003eConsecutive size range from 0.60 mm to 2.50 mm — one of each size included\u003c\/li\u003e\n\u003cli\u003e12 burs per kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003eFig. 6 (Bud)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.60 mm – 2.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e12 burs per kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOne each of Busch Fig. 6 Bud burs in sizes 0.60 mm through 2.50 mm (12 burs total)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584008487126,"sku":"B118.261KIT","price":25.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-16s12-fig-6-bud-bur-kit-of-12-0-60-mm-to-2-50-mm-otto-frei.jpg?v=1719956448"},{"product_id":"busch-fig-77b-concave-cup-bur-kit-12-0-80mm-1-90mm","title":"Busch 1772SS12 Fig 77B Concave Cup Bur Kit of 12 - 0.80mm to 1.90mm","description":"\u003cp\u003eBusch burs are the most trusted name in jewelers' burs, and the \u003cstrong\u003eBusch 1772SS12 Fig. 77B Concave Cup Bur Kit of 12\u003c\/strong\u003e delivers a carefully selected range of the most popular sizes in one convenient set. Cup burs are an essential tool for finishing the tips of prongs — the number one application for cup burs in jewelry work — and this kit makes it easy to have the right size on hand for a wide variety of settings and stone sizes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConcave\u003c\/strong\u003e refers to the traditional cup bur shape, which leaves a smooth, rounded top on a prong after finishing. This classic profile has been the standard for jewelers for generations, providing clean, consistent results. Note that a separate concave cone shape is also available from Busch in their Fig. 411C and Fig. 411CT cup burs.\u003c\/p\u003e\u003cp\u003eEach bur in this kit is crafted from \u003cstrong\u003etungsten vanadium steel\u003c\/strong\u003e and manufactured in Germany to ultra-high precision tolerances, ensuring reliable performance and long service life across professional bench applications.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eClassic Fig. 77B concave cup bur profile — the industry-standard shape for prong finishing\u003c\/li\u003e\n\u003cli\u003eKit of 12 burs, one each of the most popular sizes from 0.80mm to 1.90mm\u003c\/li\u003e\n\u003cli\u003eConcave shape produces a smooth, rounded prong tip\u003c\/li\u003e\n\u003cli\u003eMade from tungsten vanadium steel for durability and precision cutting\u003c\/li\u003e\n\u003cli\u003eManufactured in Germany to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eTrusted by professional jewelers for generations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e1772SS12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e77B Concave Cup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.80mm–1.90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e12 burs (one per size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eThe \u003cem\u003econcave\u003c\/em\u003e cup bur shape (Fig. 77B) leaves a rounded top on prong tips. For a concave cone profile, see Busch Fig. 411C and Fig. 411CT cup burs, available separately.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584044335318,"sku":"B118.399KIT","price":49.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-1772ss12-fig-77b-concave-cup-bur-kit-of-12-0-80mm-to-1-90mm-otto-frei.jpg?v=1719956439"},{"product_id":"busch-fig-411t-twincut-concave-cup-bur-kit-12-piece-0-80mm-2-00mm","title":"Busch Fig 411T Twincut Concave Cup Bur Kit of 12-0.80mm to 2.00mm","description":"\u003cp\u003e\u003cstrong\u003eBusch Fig. 411T Twincut Concave Cup Burs\u003c\/strong\u003e represent the gold standard in jeweler's burs — precision-engineered in Germany from tungsten vanadium steel to ultra-high tolerances. This kit of 12 brings together one each of the full size range of 411T Twincut Concave Cup burs, from 0.80mm to 2.00mm, making it the ideal starting point or professional refresh for any bench jeweler who works with prong settings.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eTwincut\u003c\/strong\u003e blade geometry is the defining feature of the 411T series, delivering smooth, controlled cutting action. The \u003cstrong\u003eConcave\u003c\/strong\u003e cup shape — the traditional form jewelers have relied on for generations — rounds the tip of a prong cleanly and consistently, producing a finished look that protects stones and complements fine craftsmanship. This is the number-one application for cup burs in jewelry work.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: Busch also offers a Concave Cone shape in their Fig. 411C and Fig. 411CT cup burs for jewelers who require that alternative profile.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTwincut blade geometry for smooth, efficient cutting\u003c\/li\u003e\n\u003cli\u003eConcave cup shape rounds prong tips to a traditional, polished finish\u003c\/li\u003e\n\u003cli\u003eMade from tungsten vanadium steel\u003c\/li\u003e\n\u003cli\u003eManufactured in Germany to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eKit spans a full range from 0.80mm to 2.00mm — 12 burs total\u003c\/li\u003e\n\u003cli\u003ePrimary use: finishing the tips of prongs in prong-set jewelry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e411T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut Type\u003c\/th\u003e\n\u003ctd\u003eTwincut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Shape\u003c\/th\u003e\n\u003ctd\u003eConcave Cup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e12 burs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.80mm–2.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eKit contains one each of the following Busch Fig. 411T Twincut Concave Cup burs:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.450\u003c\/strong\u003e — 0.80mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.451\u003c\/strong\u003e — 0.90mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.452\u003c\/strong\u003e — 1.00mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.453\u003c\/strong\u003e — 1.10mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.454\u003c\/strong\u003e — 1.20mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.455\u003c\/strong\u003e — 1.30mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.456\u003c\/strong\u003e — 1.40mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.457\u003c\/strong\u003e — 1.50mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.458\u003c\/strong\u003e — 1.60mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.459\u003c\/strong\u003e — 1.70mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.460\u003c\/strong\u003e — 1.80mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB118.462\u003c\/strong\u003e — 2.00mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eKit contents are subject to availability. The 1.90mm size is not included in this kit. Individual sizes may also be purchased separately.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584045580502,"sku":"B118.463KIT","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-411t-twincut-concave-cup-bur-kit-of-12-0-80mm-to-2-00mm-otto-frei.jpg?v=1719956437"},{"product_id":"jewelers-master-gia-student-bur-kit","title":"Jewelers Master GIA Student Bur Kit","description":"\u003cp\u003eThis comprehensive master bur kit, widely used by GIA students, brings together four carefully selected Busch bur assortments to cover essential drilling, shaping, and stone-setting tasks. From beginner exercises to more advanced jewelry projects, this set provides a versatile foundation of precision burs—organized and ready for bench work.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFour coordinated Busch bur assortments covering core jewelry applications\u003c\/li\u003e\n\u003cli\u003eIncludes twist drills, mixed shapes, round burs, and setting burs\u003c\/li\u003e\n\u003cli\u003eSuitable for student training through journeyman-level projects\u003c\/li\u003e\n\u003cli\u003ePrecision-manufactured burs for consistent cutting performance\u003c\/li\u003e\n\u003cli\u003eIncludes adjustable plastic storage box for organized tool management\u003c\/li\u003e\n\u003cli\u003eExpandable storage for future burs and polishing accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Kits Included\u003c\/th\u003e\n\u003ctd\u003e4 bur assortments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Pieces (Burs \u0026amp; Drills)\u003c\/th\u003e\n\u003ctd\u003e61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur \u0026amp; Drill Material\u003c\/th\u003e\n\u003ctd\u003ePrecision steel (varies by kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage Box\u003c\/th\u003e\n\u003ctd\u003ePlastic with adjustable compartments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufactured In\u003c\/th\u003e\n\u003ctd\u003eGermany (Burs); Storage Box origin not specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBusch Twist Drill Kit (15 Pieces)\u003c\/td\u003e\n\u003ctd\u003eB128.8911\u003c\/td\u003e\n\u003ctd\u003e15 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBusch Mixed Shapes Bur Kit (21 Pieces)\u003c\/td\u003e\n\u003ctd\u003eB118.8912\u003c\/td\u003e\n\u003ctd\u003e21 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBusch Round Bur Kit (19 Pieces)\u003c\/td\u003e\n\u003ctd\u003eB118.8913\u003c\/td\u003e\n\u003ctd\u003e19 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBusch Setting Bur Kit (6 Pieces)\u003c\/td\u003e\n\u003ctd\u003eB118.8914\u003c\/td\u003e\n\u003ctd\u003e6 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlastic Storage Box with Adjustable Compartments\u003c\/td\u003e\n\u003ctd\u003e115.149\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThis assortment is structured to provide broad coverage of common bur profiles used in jewelry fabrication and stone setting. The adjustable storage box allows room for future additions such as polishing wheels and additional burs.\u003c\/p\u003e\n","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584415727830,"sku":"138.891","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/jewelers-master-gia-student-bur-kit-otto-frei-1.jpg?v=1719956205"},{"product_id":"busch-fig-77-tungsten-vanadium-twist-drill-kit-15pc-07-12mm-3-32-shank","title":"Busch Fig 77 Tungsten Vanadium Twist Drill Kit of 15 On 3\/32\" Shanks-0.7mm-1.2mm","description":"\u003cp\u003eThis assortment of 15 genuine Busch Fig 77 tungsten vanadium steel twist drills includes multiple drills of the most popular sizes that jewelers use, spanning 0.7mm to 1.2mm. Busch Fig 77 twist drills are made to ultra-high precision tolerances and mounted on 3\/32\" (2.35mm) shanks for easy, secure drill changes in standard flex-shaft handpieces and drill presses. This kit is part of the GIA Graduate Jeweler tool kit.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Busch Fig 77 twist drills in tungsten vanadium steel\u003c\/li\u003e\n\u003cli\u003eUltra-high precision tolerances for accurate, clean drilling\u003c\/li\u003e\n\u003cli\u003eMounted on 3\/32\" (2.35mm) shanks for easy drill changes\u003c\/li\u003e\n\u003cli\u003eAssortment of 15 drills covering the most popular jeweler sizes\u003c\/li\u003e\n\u003cli\u003eSizes range from 0.7mm to 1.2mm\u003c\/li\u003e\n\u003cli\u003ePart of the GIA Graduate Jeweler tool kit\u003c\/li\u003e\n\u003cli\u003eStored in a round plastic bur box (part #119.248)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eDrill Type\u003c\/th\u003e\n\u003ctd\u003eFig 77 Twist Drill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\" (2.35mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.7mm–1.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e15 drills\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eRound plastic bur box (part #119.248)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e15 Busch Fig 77 tungsten vanadium twist drills (0.7mm–1.2mm)\u003c\/li\u003e\n\u003cli\u003eRound plastic bur box (part #119.248)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThe individual drill sizes included in this kit are listed below for reference. Multiple drills of the most popular sizes are included across the 0.7mm–1.2mm range.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.586\u003c\/td\u003e\n\u003ctd\u003e0.7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.587\u003c\/td\u003e\n\u003ctd\u003e0.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.589\u003c\/td\u003e\n\u003ctd\u003e1.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB128.590\u003c\/td\u003e\n\u003ctd\u003e1.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584445972694,"sku":"B128.8911","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-77-tungsten-vanadium-twist-drill-kit-of-15-on-332-shanks-0-7mm-1-2mm-otto-frei-1.jpg?v=1719956184"},{"product_id":"busch-mixed-shapes-student-bur-kit-23-pieces-gia","title":"Busch Mixed Shapes Student Bur Kit of 23 Pieces","description":"\u003cp\u003eBusch burs are the most trusted name in jewelers' burs, known for precision and durability across a wide range of shapes and sizes. \u003cstrong\u003eThis Busch Mixed Shapes Student Bur Kit of 23 pieces brings together one each of the most popular bur shapes and sizes into a single, budget-friendly starter set.\u003c\/strong\u003e This kit is part of the GIA graduate jeweler program, with burs selected by GIA expert instructors to align with the GIA curriculum — making it an ideal choice for students and emerging jewelers building their first professional toolkit.\u003c\/p\u003e\u003cp\u003eThe kit includes genuine Busch tungsten vanadium steel burs across multiple shapes, with the exception of one American-made HSS bud bur. All burs are mounted on 3\/32\" (2.35mm) shanks for easy, universal drill changes. Shapes represented include Krause, Bud, Cup, Cylinder Square Plain Cut, and Hart 90 Degree burs spanning a range of sizes. The kit ships in a round plastic bur box (part number 119.248) for convenient storage and organization.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCurated by GIA instructors for use with the GIA graduate jeweler curriculum\u003c\/li\u003e\n\u003cli\u003eGenuine Busch tungsten vanadium steel construction on all burs except one American-made HSS bud bur\u003c\/li\u003e\n\u003cli\u003eIncludes five bur shapes: Krause, Bud, Cup, Cylinder Square Plain Cut, and Hart 90 Degree\u003c\/li\u003e\n\u003cli\u003eAll burs mounted on 3\/32\" (2.35mm) shanks for universal compatibility with standard flex shaft and rotary handpieces\u003c\/li\u003e\n\u003cli\u003e23-piece count provides broad shape and size coverage in a single purchase\u003c\/li\u003e\n\u003cli\u003eIncludes a round plastic bur storage box (part #119.248)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Pieces\u003c\/th\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\" (2.35mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Material\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel (most burs); HSS (one bud bur, American made)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded Storage\u003c\/th\u003e\n\u003ctd\u003eRound plastic bur box, part #119.248\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProgram Association\u003c\/th\u003e\n\u003ctd\u003eGIA Graduate Jeweler Program\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.572\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 256 Krause Burs\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.247\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 6-021 Bud Burs\u003c\/td\u003e\n\u003ctd\u003e2.10mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.249\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 6-025 Bud Burs\u003c\/td\u003e\n\u003ctd\u003e2.50mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.401\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 77B-010 Cup Burs\u003c\/td\u003e\n\u003ctd\u003e1.00mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.402\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 77B-012 Cup Burs\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.403\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 77B-014 Cup Burs\u003c\/td\u003e\n\u003ctd\u003e1.40mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.405\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 77B-016 Cup Burs\u003c\/td\u003e\n\u003ctd\u003e1.60mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.406\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 77B-018 Cup Burs\u003c\/td\u003e\n\u003ctd\u003e1.80mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.469\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 15-008 Cylinder Square Plain Cut Burs\u003c\/td\u003e\n\u003ctd\u003e0.80mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.474\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 15-012 Cylinder Square Plain Cut Burs\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.503\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-016 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e1.40mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.504\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-016 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e1.50mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.505\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-016 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e1.60mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.506\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-018 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e1.80mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.507\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-021 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e2.10mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.508\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-023 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.509\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-025 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e2.50mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.511\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-029 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e2.90mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.516\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-040 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e4.00mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.527\u003c\/td\u003e\n\u003ctd\u003eBusch Fig. 156C-020 Hart 90 Degree Burs\u003c\/td\u003e\n\u003ctd\u003e2.00mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584446464214,"sku":"B118.8912","price":74.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-mixed-shapes-student-bur-kit-of-23-pieces-otto-frei-1.jpg?v=1726695749"},{"product_id":"busch-fig-1-round-ball-bur-kit-20-pieces-0-5mm-to-4-0mm","title":"Busch Fig 1 Round Ball Bur Kit of 19 Pieces-0.5mm to 4.0mm","description":"\u003cp\u003eBusch burs are the most trusted name in jewelers' burs, known for consistent quality and precision across a wide range of shapes and sizes. \u003cstrong\u003eThis Busch Fig 1 Round Ball Bur Kit contains one each of the most popular ball bur sizes — plus two each of three high-demand sizes — making it an ideal starter set and an excellent way to sample Busch quality across the full size range.\u003c\/strong\u003e This kit is part of the GIA graduate jeweler program, with sizes chosen by GIA's expert instructors to support their curriculum. All burs are genuine Busch tungsten vanadium steel, mounted on 3\/32\" (2.35mm) shanks for easy tool changes in standard flex-shaft handpieces and rotary tools.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Busch tungsten vanadium steel construction\u003c\/li\u003e\n\u003cli\u003eRound ball (Fig 1) bur profile — versatile for setting, drilling, and shaping\u003c\/li\u003e\n\u003cli\u003eCovers 0.50mm through 4.00mm in a single kit\u003c\/li\u003e\n\u003cli\u003eSelected by GIA instructors as part of the graduate jeweler program\u003c\/li\u003e\n\u003cli\u003e3\/32\" (2.35mm) shank fits standard flex-shaft and rotary handpieces\u003c\/li\u003e\n\u003cli\u003eIncludes extra quantities of the most frequently used sizes\u003c\/li\u003e\n\u003cli\u003eStored in a round plastic bur box (part number 119.248)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Shape\u003c\/th\u003e\n\u003ctd\u003eRound Ball (Fig 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\" (2.35mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.50mm – 4.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e20 pieces (17 sizes; 3 sizes included in duplicate quantities)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eRound plastic bur box (119.248)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.176\u003c\/td\u003e\n\u003ctd\u003eBall Bur 0.50mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.178\u003c\/td\u003e\n\u003ctd\u003eBall Bur 0.70mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.179\u003c\/td\u003e\n\u003ctd\u003eBall Bur 0.80mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.180\u003c\/td\u003e\n\u003ctd\u003eBall Bur 0.90mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.182\u003c\/td\u003e\n\u003ctd\u003eBall Bur 1.00mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.183\u003c\/td\u003e\n\u003ctd\u003eBall Bur 1.10mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.185\u003c\/td\u003e\n\u003ctd\u003eBall Bur 1.30mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.188\u003c\/td\u003e\n\u003ctd\u003eBall Bur 1.50mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.191\u003c\/td\u003e\n\u003ctd\u003eBall Bur 1.70mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.193\u003c\/td\u003e\n\u003ctd\u003eBall Bur 1.90mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.193.5\u003c\/td\u003e\n\u003ctd\u003eBall Bur 2.00mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.194\u003c\/td\u003e\n\u003ctd\u003eBall Bur 2.10mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.196\u003c\/td\u003e\n\u003ctd\u003eBall Bur 2.30mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.198\u003c\/td\u003e\n\u003ctd\u003eBall Bur 2.50mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.200\u003c\/td\u003e\n\u003ctd\u003eBall Bur 2.70mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.201\u003c\/td\u003e\n\u003ctd\u003eBall Bur 2.90mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.206\u003c\/td\u003e\n\u003ctd\u003eBall Bur 4.00mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThe product title and handle reference 15 or 19 pieces; the existing product description and bur list confirm a \u003cstrong\u003e20-piece kit\u003c\/strong\u003e (17 distinct sizes with three sizes supplied in quantities of two). Please verify the exact kit count before publishing.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584448037078,"sku":"B118.8913","price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/B118.8913NEW2_thumb_a3547902-756c-49ad-91c1-904313b88d24.jpg?v=1744043853"},{"product_id":"busch-fig-413-setting-bur-kit-6-piece-2-00mm-6-00mm","title":"Busch Fig 413 Setting Bur Kit of 6 Pieces-2.00mm to 6.00mm","description":"\u003cp\u003eBusch burs are among the most trusted names in professional jeweler's tooling, and this Fig 413 Setting Bur Kit delivers a carefully selected assortment of six sizes in a single convenient set. Designed to seat stones cleanly and accurately, the Fig 413 setting bur is an essential tool for prong, bezel, and flush setting work. This kit is part of the GIA graduate jeweler program, with burs chosen by GIA's expert instructors to support their curriculum—making it an ideal foundation set for students and working jewelers alike.\u003c\/p\u003e\u003cp\u003eAll six burs are manufactured from genuine Busch tungsten vanadium steel and mounted on a 3\/32\" (2.35mm) shank, compatible with standard flex-shaft handpieces and drill systems. The kit spans sizes from 2.00mm through 6.00mm, covering the most commonly used setting bur diameters in everyday bench work.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGenuine Busch tungsten vanadium steel construction\u003c\/li\u003e\n\u003cli\u003eFig 413 setting bur profile for precise stone seating\u003c\/li\u003e\n\u003cli\u003eSix-piece kit covering 2.00mm to 6.00mm in key sizes\u003c\/li\u003e\n\u003cli\u003eSelected by GIA instructors as part of the GIA graduate jeweler program\u003c\/li\u003e\n\u003cli\u003eMounted on 3\/32\" (2.35mm) shanks for standard handpiece compatibility\u003c\/li\u003e\n\u003cli\u003eComes packaged in a round plastic bur box (part number 119.248)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Figure\u003c\/th\u003e\n\u003ctd\u003eFig 413 (Setting Bur)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\" (2.35mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePieces Included\u003c\/th\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e2.00mm – 6.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eRound plastic bur box (part #119.248)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.724\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 413-020 Setting Bur\u003c\/td\u003e\n\u003ctd\u003e2.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.728\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 413-030 Setting Bur\u003c\/td\u003e\n\u003ctd\u003e3.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.732\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 413-040 Setting Bur\u003c\/td\u003e\n\u003ctd\u003e4.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.736\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 413-050 Setting Bur\u003c\/td\u003e\n\u003ctd\u003e5.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.737\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 413-050 Setting Bur\u003c\/td\u003e\n\u003ctd\u003e5.50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.738\u003c\/td\u003e\n\u003ctd\u003eBusch Fig 413-060 Setting Bur\u003c\/td\u003e\n\u003ctd\u003e6.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584448659670,"sku":"B118.8914","price":44.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-413-setting-bur-kit-of-6-pieces-2-00mm-to-6-00mm-otto-frei-1.jpg?v=1719956184"},{"product_id":"busch-447au-pave-cut-carbide-twist-drill-assortment-9-piece-0-80mm-1-60mm-3-32-shank","title":"Busch 447AU Pave Cut Carbide Twist Drill Assortment of 9 On 3\/32\" Shanks 0.80mm-1.60mm","description":"\u003cp\u003eThe Busch 447AU Pavé Cut Carbide Twist Drill Assortment gives jewelers a versatile, time-saving set engineered specifically for pavé setting work. Each bur in this 9-piece collection combines a twist drill and a round bur into a single tool — pre-drilling and seat shaping happen in one pass, eliminating the need to switch tools mid-process. The result is improved precision, consistent stone seats, and a faster overall workflow.\u003c\/p\u003e\u003cp\u003eAll nine burs are manufactured from hot isostatically compressed finest-grain carbide, delivering exceptional hardness, wear resistance, and edge retention even under demanding use. Each bur is mounted on a 3\/32\" shank, compatible with standard flex shaft handpieces and rotary tools. The assortment spans 0.80mm through 1.60mm in 0.10mm increments, covering the most common pavé drilling requirements in a single purchase.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-in-1 design:\u003c\/strong\u003e combines twist drill and round bur functions in a single tool\u003c\/li\u003e\n\u003cli\u003ePre-drilling and seat shaping completed in one step for greater efficiency\u003c\/li\u003e\n\u003cli\u003eManufactured from hot isostatically compressed finest-grain carbide\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for pavé setting applications\u003c\/li\u003e\n\u003cli\u003eConsistent 0.10mm incremental sizing for precise stone-seat matching\u003c\/li\u003e\n\u003cli\u003eMounted on standard 3\/32\" shanks for broad handpiece compatibility\u003c\/li\u003e\n\u003cli\u003e9-piece assortment covers 0.80mm–1.60mm range\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e447AU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHot isostatically compressed finest-grain carbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.80mm–1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Increment\u003c\/th\u003e\n\u003ctd\u003e0.10mm steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePieces per Set\u003c\/th\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003ePavé setting — pre-drilling and seat shaping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eOne each of the following 447AU Pavé Cut Carbide Twist Drills:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBAU118.448 — \u003cstrong\u003e0.80mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.449 — \u003cstrong\u003e0.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.450 — \u003cstrong\u003e1.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.451 — \u003cstrong\u003e1.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.452 — \u003cstrong\u003e1.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.453 — \u003cstrong\u003e1.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.454 — \u003cstrong\u003e1.40mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.455 — \u003cstrong\u003e1.50mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU118.456 — \u003cstrong\u003e1.60mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eThese burs are also available for individual purchase. See part number \u003cstrong\u003eBAU118.447AU\u003c\/strong\u003e for single-size ordering.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584555253974,"sku":"BAU118.460","price":275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-447au-pave-cut-carbide-twist-drill-assortment-of-9-on-332-shanks-0-80mm-1-60mm-otto-frei.jpg?v=1719956095"},{"product_id":"busch-ball-bur-kit-30pc-0-50-5-00mm-3-32-shank","title":"Busch Ball Bur Kit of 30 Pieces on 3\/32 Shanks-0.50mm to 5.00mm","description":"\u003cp\u003eThis 30-piece Busch Ball Bur Kit provides a complete range of the most widely used ball bur sizes for professional jewelry work. Precision machine made from tungsten vanadium steel, these burs cut precious metals smoothly and cleanly with minimal chatter or drag. With one bur in each size from 0.50 mm to 5.00 mm, this set keeps the exact diameter you need close at hand.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete set with one bur in each size from 0.50–5.00 mm\u003c\/li\u003e\n\u003cli\u003eBall (round) profile for general stone setting and metal removal\u003c\/li\u003e\n\u003cli\u003eTungsten vanadium steel construction\u003c\/li\u003e\n\u003cli\u003eMachine made to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eSmooth, clean cutting action in precious metals\u003c\/li\u003e\n\u003cli\u003eMounted on 3\/32 in (2.35 mm) shanks\u003c\/li\u003e\n\u003cli\u003eSupplied in round plastic holder\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Style\u003c\/th\u003e\n\u003ctd\u003eBall (Round)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.50–5.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Pieces\u003c\/th\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32 in (2.35 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufactured In\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.176\u003c\/td\u003e\n\u003ctd\u003e0.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.177\u003c\/td\u003e\n\u003ctd\u003e0.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.178\u003c\/td\u003e\n\u003ctd\u003e0.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.179\u003c\/td\u003e\n\u003ct\u003e\u003c\/t\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43584635961558,"sku":"B118.150","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-ball-bur-kit-of-30-pieces-on-332-shanks-0-50mm-to-5-00mm-otto-frei.jpg?v=1719956043"},{"product_id":"busch-fig-4203s-2-groove-carbide-twist-drills-3-32-shank-70mm-1-60mm-kit-10","title":"Busch Fig 4203S 2 Groove Carbide Twist Drills on 3\/32\" Shanks .70mm-1.60mm  - Kit of 10","description":"\u003cp\u003e\u003cem\u003e2-Groove design recommended for hard materials like steel, platinum, titanium, and hard metal alloys of gold and silver — outstanding service life.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003eBusch Fig 4203S carbide twist drills are engineered to expel more material from the hole, allowing them to perform better and last longer when cutting hard metals. These drills outperform high-speed steel and standard tungsten carbide when drilling jewelry metals and can also be used on mild steel. The special 2-groove construction makes chip removal easier and significantly reduces breakage risk.\u003c\/p\u003e\u003cp\u003eUsing a coolant extends service life. These drills perform best when used in a drill press — as with any drill, breakage can occur with excess leverage or canting. When used freehand, a starting guide hole is recommended.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot for use with glass, ceramics, or gemstones.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2-groove carbide construction for superior chip expulsion and reduced breakage\u003c\/li\u003e\n\u003cli\u003eOutlasts high-speed steel and standard tungsten carbide in hard metal applications\u003c\/li\u003e\n\u003cli\u003eSuitable for steel, platinum, titanium, and hard alloys of gold and silver\u003c\/li\u003e\n\u003cli\u003eCompatible with mild steel\u003c\/li\u003e\n\u003cli\u003eUse of coolant increases drill lifespan\u003c\/li\u003e\n\u003cli\u003e3\/32\" shank fits standard flex shaft and drill press collets\u003c\/li\u003e\n\u003cli\u003eFreehand recommended speed: 5,000–9,000 RPM\u003c\/li\u003e\n\u003cli\u003eDrill press recommended speed: 8,000–14,000 RPM\u003c\/li\u003e\n\u003cli\u003eNot for use on glass, ceramics, or gemstones\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFigure\u003c\/th\u003e\n\u003ctd\u003e4203S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrill Type\u003c\/th\u003e\n\u003ctd\u003e2-Groove Carbide Twist Drill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter Range\u003c\/th\u003e\n\u003ctd\u003e0.70mm–1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed (Freehand)\u003c\/th\u003e\n\u003ctd\u003e5,000–9,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed (Drill Press)\u003c\/th\u003e\n\u003ctd\u003e8,000–14,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity\u003c\/th\u003e\n\u003ctd\u003e10 drills\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eKit of 10 carbide twist drills, one of each diameter:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBAU128.427 — \u003cstrong\u003e0.70mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.428 — \u003cstrong\u003e0.80mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.429 — \u003cstrong\u003e0.90mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.430 — \u003cstrong\u003e1.00mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.431 — \u003cstrong\u003e1.10mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.432 — \u003cstrong\u003e1.20mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.433 — \u003cstrong\u003e1.30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.434 — \u003cstrong\u003e1.40mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.435 — \u003cstrong\u003e1.50mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBAU128.436 — \u003cstrong\u003e1.60mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eA starting guide hole is recommended when drilling freehand.\u003c\/li\u003e\n\u003cli\u003eCoolant use is recommended to maximize drill lifespan.\u003c\/li\u003e\n\u003cli\u003eBreakage may occur with excess leverage or canting — drill press use minimizes this risk.\u003c\/li\u003e\n\u003cli\u003eNot suitable for glass, ceramics, or gemstones.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Busch Burs","offers":[{"title":"Default Title","offer_id":43586843050198,"sku":"BAU128.420","price":177.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-4203s-2-groove-carbide-twist-drills-on-332-shanks-70mm-1-60mm-kit-of-10-otto-frei.jpg?v=1719955765"},{"product_id":"busch-232-circular-saw-blades-stainless-steel-19mm-22mm","title":"Busch 232-Circular Saw Blades","description":"\u003cp\u003eBusch circular saw blades are precision-made in Germany from \u003cstrong\u003e0.10mm (0.004\") thick stainless steel\u003c\/strong\u003e, engineered for clean, accurate cuts in jewelry and metalsmithing applications. Each blade features a \u003cstrong\u003e1\/16\" diameter center hole\u003c\/strong\u003e for standard mandrel mounting. Available in two diameters to suit a variety of cutting tasks, these blades are sold individually so you can stock exactly what you need.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGerman-made by Busch for consistent professional quality\u003c\/li\u003e\n\u003cli\u003eConstructed from stainless steel for durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eUltra-thin 0.10mm (0.004\") blade thickness for precise, minimal-kerf cuts\u003c\/li\u003e\n\u003cli\u003e1\/16\" diameter center hole designed for mandrel mounting\u003c\/li\u003e\n\u003cli\u003eAvailable in two diameters: 3\/4\" (19mm) and 7\/8\" (22mm)\u003c\/li\u003e\n\u003cli\u003eSold individually — purchase only the quantity you need\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBlade Thickness\u003c\/th\u003e\n\u003ctd\u003e0.10mm (0.004\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCenter Hole Diameter\u003c\/th\u003e\n\u003ctd\u003e1\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eIndividually (per piece)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e148.890\u003c\/td\u003e\n\u003ctd\u003e3\/4\" (19mm)\u003c\/td\u003e\n\u003ctd\u003e0.004\" (0.10mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e148.891\u003c\/td\u003e\n\u003ctd\u003e7\/8\" (22mm)\u003c\/td\u003e\n\u003ctd\u003e0.004\" (0.10mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"3\/4\" x .004","offer_id":47551722979542,"sku":"148.890","price":3.15,"currency_code":"USD","in_stock":true},{"title":"7\/8\" x .004\"","offer_id":47551723012310,"sku":"148.891","price":3.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-232-circular-saw-blades-otto-frei.jpg?v=1719955512"},{"product_id":"busch-fig-411t-twincut-concave-cup-burs-80mm-2-00mm-6-pack","title":"Busch Fig. 411T - Twincut Concave Cup Burs .80mm-2.00mm-6 Packs","description":"\u003cp\u003eBusch Fig. 411T 3-in-1 cup burs are designed for finishing and rounding prongs during stone setting. The traditional concave cup shape combined with twincut blade geometry allows smooth rounding while efficiently clearing metal shavings for clean, controlled results.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFig. 411T traditional concave cup profile\u003c\/li\u003e\n\u003cli\u003e3-in-1 twincut blade geometry for efficient chip clearance\u003c\/li\u003e\n\u003cli\u003eDesigned for rounding and finishing prong tips\u003c\/li\u003e\n\u003cli\u003eManufactured from tungsten vanadium steel\u003c\/li\u003e\n\u003cli\u003eMade to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eAvailable in sizes from 0.80 mm to 2.00 mm\u003c\/li\u003e\n\u003cli\u003eSold in packs of six\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eFig. 411T 3-in-1 Concave Cup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Vanadium Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.80 mm (0.031 in) – 2.00 mm (0.079 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Size\u003c\/th\u003e\n\u003ctd\u003e6 Burs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eBur Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.450\u003c\/td\u003e\n\u003ctd\u003e0.80 mm (0.031 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.451\u003c\/td\u003e\n\u003ctd\u003e0.90 mm (0.035 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.452\u003c\/td\u003e\n\u003ctd\u003e1.00 mm (0.039 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.453\u003c\/td\u003e\n\u003ctd\u003e1.10 mm (0.043 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.454\u003c\/td\u003e\n\u003ctd\u003e1.20 mm (0.047 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.455\u003c\/td\u003e\n\u003ctd\u003e1.30 mm (0.051 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.456\u003c\/td\u003e\n\u003ctd\u003e1.40 mm (0.055 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.457\u003c\/td\u003e\n\u003ctd\u003e1.50 mm (0.059 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.458\u003c\/td\u003e\n\u003ctd\u003e1.60 mm (0.063 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.459\u003c\/td\u003e\n\u003ctd\u003e1.70 mm (0.067 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.460\u003c\/td\u003e\n\u003ctd\u003e1.80 mm (0.071 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.461\u003c\/td\u003e\n\u003ctd\u003e1.90 mm (0.075 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.462\u003c\/td\u003e\n\u003ctd\u003e2.00 mm (0.079 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":".80mm","offer_id":43696841425110,"sku":"B118.450","price":27.85,"currency_code":"USD","in_stock":true},{"title":".90mm","offer_id":43696841457878,"sku":"B118.451","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.00mm","offer_id":43696841490646,"sku":"B118.452","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.10mm","offer_id":43696841523414,"sku":"B118.453","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.20mm","offer_id":43696841556182,"sku":"B118.454","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.30mm","offer_id":43696841588950,"sku":"B118.455","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.40mm","offer_id":43696841621718,"sku":"B118.456","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.50mm","offer_id":43696841654486,"sku":"B118.457","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.60mm","offer_id":43696841687254,"sku":"B118.458","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.70mm","offer_id":43696841720022,"sku":"B118.459","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.80mm","offer_id":43696841752790,"sku":"B118.460","price":27.85,"currency_code":"USD","in_stock":true},{"title":"1.90mm","offer_id":43696841785558,"sku":"B118.461","price":27.85,"currency_code":"USD","in_stock":true},{"title":"2.00mm","offer_id":43696841818326,"sku":"B118.462","price":27.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-411t-twincut-concave-cup-burs-80mm-2-00mm-6-packs-otto-frei.jpg?v=1689357671"},{"product_id":"busch-fig-1-ball-burs-4-00-8-50mm","title":"Busch Fig. 1 Ball Burs 4.00mm-8.50mm","description":"\u003cp\u003e\u003cstrong\u003eBusch Fig. 1 Ball Burs\u003c\/strong\u003e are the industry standard for precision and quality in jewelry and metalworking. Manufactured in Germany from high-grade \u003cstrong\u003etungsten vanadium steel\u003c\/strong\u003e, these burs are produced to extremely tight tolerances, ensuring smooth cutting action and exceptional durability. Busch is one of the most trusted names in jewelers' tools, renowned for consistent performance and long tool life.\u003c\/p\u003e\n\u003cp\u003eThis listing covers the larger size range — 4.00 mm through 8.50 mm — making these burs ideal for heavy cutting, shaping, and texturing work on precious and non-precious metals. Each bur features a precisely formed ball profile with accurate concentricity for vibration-free operation. Sizes in this range are sold individually.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured in Germany by Busch, the world's leading bur manufacturer\u003c\/li\u003e\n\u003cli\u003eFig. 1 ball bur profile — European and USA standard\u003c\/li\u003e\n\u003cli\u003eHigh-grade tungsten vanadium steel for clean, consistent cutting\u003c\/li\u003e\n\u003cli\u003eAccurately machined and balanced for vibration-free precision work\u003c\/li\u003e\n\u003cli\u003eIdeal for shaping, texturing, and hollowing metal surfaces\u003c\/li\u003e\n\u003cli\u003eSizes 4.00 mm and larger sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Profile\u003c\/th\u003e\n\u003ctd\u003eFig. 1 Ball\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten vanadium steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\" (2.35 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e4.00 mm – 8.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eIndividually\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eBur Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.206\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.207\u003c\/td\u003e\n\u003ctd\u003e4.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.208\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.209\u003c\/td\u003e\n\u003ctd\u003e4.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.210\u003c\/td\u003e\n\u003ctd\u003e5.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.212\u003c\/td\u003e\n\u003ctd\u003e5.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.214\u003c\/td\u003e\n\u003ctd\u003e6.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.216\u003c\/td\u003e\n\u003ctd\u003e6.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.218\u003c\/td\u003e\n\u003ctd\u003e7.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.220\u003c\/td\u003e\n\u003ctd\u003e7.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.222\u003c\/td\u003e\n\u003ctd\u003e8.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.224\u003c\/td\u003e\n\u003ctd\u003e8.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eBusch ball burs under 4.00 mm are sold in multiples of six. Sizes 4.00 mm and larger, covered by this listing, are sold individually. For best results, operate at moderate speed with appropriate lubrication.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"4.00mm","offer_id":43696857743574,"sku":"B118.206","price":5.2,"currency_code":"USD","in_stock":true},{"title":"4.20mm","offer_id":43696857809110,"sku":"B118.207","price":5.2,"currency_code":"USD","in_stock":true},{"title":"4.50mm","offer_id":43696857841878,"sku":"B118.208","price":5.2,"currency_code":"USD","in_stock":true},{"title":"4.70mm","offer_id":43696857874646,"sku":"B118.209","price":5.2,"currency_code":"USD","in_stock":true},{"title":"5.00mm","offer_id":43696857907414,"sku":"B118.210","price":5.2,"currency_code":"USD","in_stock":true},{"title":"5.50mm","offer_id":43696857940182,"sku":"B118.212","price":8.7,"currency_code":"USD","in_stock":true},{"title":"6.00mm","offer_id":43696857972950,"sku":"B118.214","price":8.7,"currency_code":"USD","in_stock":true},{"title":"6.50mm","offer_id":43696858005718,"sku":"B118.216","price":8.7,"currency_code":"USD","in_stock":true},{"title":"7.00mm","offer_id":43696858038486,"sku":"B118.218","price":8.7,"currency_code":"USD","in_stock":true},{"title":"7.50mm","offer_id":43696858071254,"sku":"B118.220","price":10.75,"currency_code":"USD","in_stock":true},{"title":"8.00mm","offer_id":43696858104022,"sku":"B118.222","price":10.75,"currency_code":"USD","in_stock":true},{"title":"8.50mm","offer_id":43696858136790,"sku":"B118.224","price":10.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-1-ball-burs-4-00mm-8-50mm-otto-frei.jpg?v=1719955376"},{"product_id":"busch-fig-411ccc-clean-cut-concave-cup-burs-1-00mm-2-30mm-6-pack","title":"Busch Fig. 411CCC Clean Cut Concave Cup Burs 1.00mm-2.30mm-6 Packs","description":"\u003cp\u003eBusch Fig. 411CCC Clean Cut Concave Cup burs are precision-engineered for rounding and finishing prongs with clean, controlled results. The open cutting geometry clears metal shavings efficiently, leaving a smooth, rounded prong top without surface marring.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFig. 411CCC Clean Cut Concave cup design\u003c\/li\u003e\n\u003cli\u003eOpen cutting edges allow efficient chip clearance\u003c\/li\u003e\n\u003cli\u003eConcave cup shape leaves a rounded prong top\u003c\/li\u003e\n\u003cli\u003eManufactured from tungsten vanadium steel\u003c\/li\u003e\n\u003cli\u003eMade to ultra-high precision tolerances\u003c\/li\u003e\n\u003cli\u003eAvailable in sizes from 1.00 mm to 2.30 mm\u003c\/li\u003e\n\u003cli\u003eSold in packs of six burs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Type\u003c\/th\u003e\n\u003ctd\u003eFig. 411CCC Clean Cut Concave Cup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eTungsten Vanadium Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1.00 mm (0.039 in) – 2.30 mm (0.091 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Size\u003c\/th\u003e\n\u003ctd\u003e6 Burs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eBur Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.421\u003c\/td\u003e\n\u003ctd\u003e1.00 mm (0.039 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.421.5\u003c\/td\u003e\n\u003ctd\u003e1.10 mm (0.043 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.422\u003c\/td\u003e\n\u003ctd\u003e1.20 mm (0.047 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.422.5\u003c\/td\u003e\n\u003ctd\u003e1.30 mm (0.051 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.423\u003c\/td\u003e\n\u003ctd\u003e1.40 mm (0.055 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.423.5\u003c\/td\u003e\n\u003ctd\u003e1.50 mm (0.059 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.424\u003c\/td\u003e\n\u003ctd\u003e1.60 mm (0.063 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.425\u003c\/td\u003e\n\u003ctd\u003e1.80 mm (0.071 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.426\u003c\/td\u003e\n\u003ctd\u003e2.10 mm (0.083 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB118.426.5\u003c\/td\u003e\n\u003ctd\u003e2.30 mm (0.091 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Busch Burs","offers":[{"title":"1.00mm","offer_id":43696893788374,"sku":"B118.421","price":24.3,"currency_code":"USD","in_stock":true},{"title":"1.10mm","offer_id":43696894050518,"sku":"B118.421.5","price":24.3,"currency_code":"USD","in_stock":true},{"title":"1.20mm","offer_id":43696893821142,"sku":"B118.422","price":24.3,"currency_code":"USD","in_stock":true},{"title":"1.30mm","offer_id":43696894083286,"sku":"B118.422.5","price":24.3,"currency_code":"USD","in_stock":true},{"title":"1.40mm","offer_id":43696893853910,"sku":"B118.423","price":24.3,"currency_code":"USD","in_stock":true},{"title":"1.50mm","offer_id":43696893886678,"sku":"B118.423.5","price":24.3,"currency_code":"USD","in_stock":true},{"title":"1.60mm","offer_id":43696893919446,"sku":"B118.424","price":24.3,"currency_code":"USD","in_stock":true},{"title":"1.80mm","offer_id":43696893952214,"sku":"B118.425","price":24.3,"currency_code":"USD","in_stock":true},{"title":"2.10mm","offer_id":43696893984982,"sku":"B118.426","price":24.3,"currency_code":"USD","in_stock":true},{"title":"2.30mm","offer_id":43696894017750,"sku":"B118.426.5","price":24.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-fig-411ccc-clean-cut-concave-cup-burs-1-00mm-2-30mm-6-packs-otto-frei.jpg?v=1719955370"},{"product_id":"busch-carbide-ram-roller-burnishers-6mm","title":"Busch Carbide 6mm Ram Roller Burnishers-22 or 32 Faces","description":"\u003cp\u003eChoose from 2 different carbide ram rollers, both 6mm diameter. One with 22 faces, the other with 36 faces. These are precision burnishers designed to hammer out porosity, scratches, and fire scale from precious metal castings. Ideal for gold, platinum, and silver work, they deliver fast, controlled surface refinement—leaving castings denser, smoother, and ready for final finishing.\u003c\/p\u003e\n\u003cp\u003e22 faces will cover a slightly broader area than the 36 face version.  The difference in effect is slight. \u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSolid carbide construction for long service life\u003c\/li\u003e\n\u003cli\u003eChoose from 22 faces or 36 faces\u003c\/li\u003e\n\u003cli\u003eCylindrical ram roller design for efficient porosity removal\u003c\/li\u003e\n\u003cli\u003eFaceted profiles enhance controlled surface compression\u003c\/li\u003e\n\u003cli\u003eMounted on 3\/32\" (2.35 mm) mandrels for flex shaft use\u003c\/li\u003e\n\u003cli\u003eMaximum working speed: 10,000 RPM\u003c\/li\u003e\n\u003cli\u003eDesigned for gold, platinum, and silver castings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRoller Diameter\u003c\/th\u003e\n\u003ctd\u003e6.0 mm (0.24\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMandrel Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/32\" (2.35 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Speed\u003c\/th\u003e\n\u003ctd\u003e10,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufactured In\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBusch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eFace Count\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.470\u003c\/td\u003e\n\u003ctd\u003e22 Faces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBAU118.471\u003c\/td\u003e\n\u003ctd\u003e36 Faces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eUse light, controlled pressure at or below the maximum recommended speed. Keep the tool moving to prevent overheating and maintain consistent surface compression. Always wear appropriate eye protection when operating rotary tools.\u003c\/p\u003e\n\u003cp\u003eWant to buy several variants quickly? Open the Quick Order tab and add everything in one go.\u003c\/p\u003e","brand":"Busch Burs","offers":[{"title":"Faceted with 22 Faces","offer_id":43696895852758,"sku":"BAU118.470","price":64.85,"currency_code":"USD","in_stock":true},{"title":"Faceted with 36 Faces","offer_id":43696895885526,"sku":"BAU118.471","price":68.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/busch-carbide-ram-roller-burnishers-otto-frei.jpg?v=1719955369"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/collections\/busch-burs-otto-frei.jpg?v=1726692590","url":"https:\/\/www.ottofrei.com\/collections\/busch-burs-carbide-drills-jewelry.oembed?page=3","provider":"Otto Frei","version":"1.0","type":"link"}