{"product_id":"swiss-tungsten-vanadium-cup-bur-assortment-090-230mm-9-pieces","title":"Swiss Cup Bur Assortment - .90 to 2.30mm - 9 Pieces","description":"\u003cp\u003eThe \u003cstrong\u003eSwiss Cup Bur Assortment\u003c\/strong\u003e brings together 9 essential sizes of Swiss-made Tungsten Vanadium Cup Burs in a single convenient plastic container — giving jewelers an immediate, ready-to-use range from 0.90mm to 2.30mm. Cup burs are among the most widely used burs in the jewelry industry, prized for setting stones, rounding prong tips, and refining seat edges with speed and control.\u003c\/p\u003e\u003cp\u003eTungsten Vanadium steel burs are machine-made to ultra-high precision tolerances, producing cuts that are uniformly smooth and clean with no chatter or drag on precious metal. Unlike High Speed Steel (HSS) burs, which are individually hand-cut and therefore vary from piece to piece, Tungsten Vanadium burs are mechanically consistent — every bur in this set performs predictably. The most modern manufacturing equipment combined with Swiss steel hardening expertise makes this line of burs a top seller for professional bench jewelers. All burs in this assortment feature the standard \u003cstrong\u003e3\/32\" diameter shank\u003c\/strong\u003e, compatible with most flex shafts and rotary handpieces.\u003c\/p\u003e\u003cp\u003eNote that while Tungsten Vanadium burs offer exceptional precision and value, they are not as long-lasting as USA-made High Speed Steel burs and are typically available at a lower price point.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e9-piece assortment covering sizes 0.90mm – 2.30mm\u003c\/li\u003e\n\u003cli\u003eSwiss-made Tungsten Vanadium steel construction\u003c\/li\u003e\n\u003cli\u003eMachine-made to ultra-high precision tolerances for uniform consistency\u003c\/li\u003e\n\u003cli\u003eCuts precious metal smoothly and cleanly — no chatter or drag\u003c\/li\u003e\n\u003cli\u003eFig. 77B cup bur profile, the most popular style in the jewelry industry\u003c\/li\u003e\n\u003cli\u003eStandard 3\/32\" diameter shank fits most flex shafts and rotary handpieces\u003c\/li\u003e\n\u003cli\u003eStored and delivered in a plastic container 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\u003eCup Bur (Fig. 77B)\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\u003eSwiss Made\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 – 2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePieces Included\u003c\/th\u003e\n\u003ctd\u003e9\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\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\u003e118.400\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 77B Cup Bur\u003c\/td\u003e\n\u003ctd\u003e0.90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e118.401\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 77B Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e118.402\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 77B Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e118.403\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 77B Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e118.404\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 77B Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e118.405\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 77B Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e118.406\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 77B Cup Bur\u003c\/td\u003e\n\u003ctd\u003e1.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e118.407\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 77B Cup Bur\u003c\/td\u003e\n\u003ctd\u003e2.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e118.408\u003c\/td\u003e\n\u003ctd\u003eSwiss Fig. 77B Cup Bur\u003c\/td\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei Swiss Burs","offers":[{"title":"Default Title","offer_id":43582564892886,"sku":"118.010","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/swiss-cup-bur-assortment-90-to-2-30mm-9-pieces-otto-frei.jpg?v=1719956982","url":"https:\/\/www.ottofrei.com\/products\/swiss-tungsten-vanadium-cup-bur-assortment-090-230mm-9-pieces","provider":"Otto Frei","version":"1.0","type":"link"}