{"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","url":"https:\/\/www.ottofrei.com\/products\/busch-fig-1-ball-burs-4-00-8-50mm","provider":"Otto Frei","version":"1.0","type":"link"}