{"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","url":"https:\/\/www.ottofrei.com\/products\/busch-fig-411t-twincut-concave-cup-bur-kit-12-piece-0-80mm-2-00mm","provider":"Otto Frei","version":"1.0","type":"link"}