{"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\u003eA cup bur rounds the tip of a prong cleanly and consistently, the number one application for cup burs in jewelry work. \u003cstrong\u003eBusch Fig. 411T twincut concave cup burs\u003c\/strong\u003e are precision engineered in Germany from tungsten vanadium steel to ultra-high tolerances, and this kit of 12 brings together one bur in each size of the full 411T range, from 0.80 mm to 2.00 mm.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003etwincut\u003c\/strong\u003e blade geometry is the defining feature of the Fig. 411T series, delivering a 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 produces a finished look that protects stones. The kit is supplied in a plastic bur box with 48 holes for 3\/32 in shank burs.\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\u003e12 burs spanning 0.80–2.00 mm, one in each size\u003c\/li\u003e\n\u003cli\u003ePrimary use: finishing the tips of prongs in prong-set jewelry\u003c\/li\u003e\n\u003cli\u003eSupplied in a plastic bur box with 48 holes for 3\/32 in shank burs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eThe 1.90 mm size is not part of this kit. Busch also offers a concave cone shape in the \u003cem\u003eFig. 411C\u003c\/em\u003e and \u003cem\u003eFig. 411CT\u003c\/em\u003e cup burs, and individual sizes are available 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","url":"https:\/\/www.ottofrei.com\/ja\/products\/busch-fig-411t-twincut-concave-cup-bur-kit-12-piece-0-80mm-2-00mm","provider":"Otto Frei","version":"1.0","type":"link"}