{"product_id":"burro-ultimate-busch-carbide-stonesetters-burs-drills-85-piece-kit","title":"BURRO Ultimate Busch Carbide Stonesetters 85-Piece Burs \u0026 Drills Kit","description":"\u003cp\u003eThe \u003cstrong\u003eBURRO Ultimate Busch Carbide Stonesetters 85-Piece Burs \u0026amp; Drills Kit\u003c\/strong\u003e is a comprehensive stone-setting toolkit assembled for professional jewelers who demand precision, durability, and organization. This all-in-one kit pairs six complete sets of Busch carbide burs and drills — spanning round burs, hart burs, setting burs, pave-cut burs, and short twist drills — with the BURRO Jeweler's Bur Rotating Organizing Holder from Nashef Designs. Together, these tools cover every critical step of pave, flush, and bezel stone setting in hard metals including platinum, titanium, white gold, and steel.\u003c\/p\u003e\n\u003cp\u003eBusch carbide burs are manufactured in Germany using hot isostatically compressed finest-grain carbide and state-of-the-art blade geometry. They outlast tungsten vanadium and high-speed steel burs, making them a cost-efficient choice for high-volume professional use. All bur and drill shanks are 3\/32\". Recommended operating speed is \u003cstrong\u003e2,000–10,000 RPM\u003c\/strong\u003e for burs; \u003cstrong\u003e3,000–5,000 RPM\u003c\/strong\u003e for the short twist drills.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBURRO Rotating Organizer\u003c\/strong\u003e (128.508) anchors the kit with a 7-layer, lazy Susan–mounted holder marked with Busch bur part numbers for rapid identification and access. It accommodates virtually all 3\/32\" shank bur styles and is 3D printed by Nashef Designs. Dimensions: 9\" H × 8\" W × 8\" D.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e85-piece kit combines six Busch carbide bur\/drill sets plus the BURRO rotating organizer\u003c\/li\u003e\n\u003cli\u003eBusch carbide burs made in Germany from hot isostatically compressed finest-grain carbide\u003c\/li\u003e\n\u003cli\u003eOutlasts tungsten vanadium and high-speed steel burs on platinum, titanium, steel, and gold alloys\u003c\/li\u003e\n\u003cli\u003eAll burs and drills feature 3\/32\" shanks for universal handpiece compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFig 1AU Round Burs (set of 19):\u003c\/strong\u003e 0.50–2.30mm — enlarge drilled holes for pave stone mounting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFig 447AU Pave Cut Burs (set of 9):\u003c\/strong\u003e 0.80–1.60mm — combines twist drill and round bur in one tool\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFig 414AU 90° Hart Burs (set of 15):\u003c\/strong\u003e 0.90–2.30mm — cuts seats in prongs at 90 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFig 446AU 70° Hart Burs (set of 15):\u003c\/strong\u003e 0.90–2.30mm — cuts seats in prongs at 70 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFig 413AU Setting Burs (set of 23):\u003c\/strong\u003e 0.80–3.00mm — drills precise seat for faceted stones in flush and bezel settings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFig 4205S Short Twist Drills (set of 4):\u003c\/strong\u003e 0.70–1.00mm — 2-groove design for drilling precise starter holes in hard metals\u003c\/li\u003e\n\u003cli\u003eBURRO organizer features 7 labeled layers with dedicated compartments for each bur style\u003c\/li\u003e\n\u003cli\u003eBURRO base layer holds up to 47 round\/ball bur compartments; top layer adds 20 extra 3\/32\" holes and 14 GRS quick-change slots\u003c\/li\u003e\n\u003cli\u003eBURRO sits on a smooth-action lazy Susan for effortless bench-side rotation\u003c\/li\u003e\n\u003cli\u003eShort twist drills (4205S) designed to resist breakage from torsional stress during shallow-hole pave drilling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size (All Burs \u0026amp; Drills)\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed (Burs)\u003c\/th\u003e\n\u003ctd\u003e2,000–10,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Speed (4205S Twist Drills)\u003c\/th\u003e\n\u003ctd\u003e3,000–5,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Material\u003c\/th\u003e\n\u003ctd\u003eCarbide (hot isostatically compressed finest-grain)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin (Burs)\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrganizer Material\u003c\/th\u003e\n\u003ctd\u003e3D printed plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrganizer Dimensions\u003c\/th\u003e\n\u003ctd\u003e9\" H × 8\" W × 8\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrganizer Layers\u003c\/th\u003e\n\u003ctd\u003e7 (Base + L1–L6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Pieces in Kit\u003c\/th\u003e\n\u003ctd\u003e85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e128.508\u003c\/strong\u003e — BURRO Jeweler's Bur Rotating Organizing Holder (Nashef Designs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBAU118.170\u003c\/strong\u003e — Busch Fig 1AU Carbide Round Burs, set of 19, 0.50–2.30mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBAU118.460\u003c\/strong\u003e — Busch Fig 447AU Pave Cut Carbide Twist Drill Burs, set of 9, 0.80–1.60mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBAU118.500\u003c\/strong\u003e — Busch Fig 414AU Carbide 90° Hart Burs, set of 15, 0.90–2.30mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBAU118.600\u003c\/strong\u003e — Busch Fig 446AU Carbide 70° Hart Burs, set of 15, 0.90–2.30mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBAU118.835\u003c\/strong\u003e — Busch Fig 413AU Carbide Setting Burs, set of 23, 0.80–3.00mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBAU128.400\u003c\/strong\u003e — Busch Fig 4205S 2-Groove Short Carbide Twist Drills, set of 4, 0.70–1.00mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFig 4205S short twist drills are \u003cem\u003enot\u003c\/em\u003e for use with glass, ceramics, or gemstones.\u003c\/li\u003e\n\u003cli\u003eThe BURRO organizer is designed around Busch bur part numbers but accommodates most brands using similar style numbers.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nashef Designs","offers":[{"title":"Default Title","offer_id":45048592793814,"sku":"BAU118.899KIT","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/burro-ultimate-busch-carbide-stonesetters-85-piece-burs-and-drills-kit-otto-frei-1.jpg?v=1726697694","url":"https:\/\/www.ottofrei.com\/es\/products\/burro-ultimate-busch-carbide-stonesetters-burs-drills-85-piece-kit","provider":"Otto Frei","version":"1.0","type":"link"}