{"title":"Spearhead","description":"","products":[{"product_id":"spearhead-hss-ball-bur-kit-15-pieces-0-90-3-80mm","title":"Spearhead High Speed Steel Ball Bur Kit of 15 Pieces","description":"\u003cp\u003eBall burs cut round seats and hollows in metal, and this kit steps through the fifteen smallest sizes in one box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Supply Notice: If you order this set, it will not be complete.\u003c\/strong\u003e Spearhead has not been able to supply all sizes in this kit as ordered, and Otto Frei does not have confirmed ship dates on open back orders. \u003cstrong\u003eWe will supply a partial set only, at a reduced price, based on what burs are in stock on the date of your order.\u003c\/strong\u003e For example, as of 7\/29\/2026, only 10 of the 15 sizes were available; the count may be more or less when you order. We will contact you with the exact sizes in stock and the updated (reduced) kit price. \u003cstrong\u003eWe are not back-ordering unavailable sizes, as restocking is random and unconfirmed.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYou may also choose to fill in the set with larger sizes that are available. This will result in a set of 15 at additional cost.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOtto Frei carries Spearhead brand High Speed Steel (HSS) Ball Burs, hand cut by expert craftsmen in the USA. These burs are easily identified by the size stamped directly on their 3\/32\" shanks. While priced higher than imported Tungsten Vanadium Carbon Steel burs, Spearhead HSS burs stay sharper longer and offer extended service life compared to machine-cut alternatives. HSS burs are the preferred choice of quality jewelers.\u003c\/p\u003e\n\u003cp\u003eThis kit is designed to include one each of the first 15 HSS Ball Bur sizes, ranging from No. 1 (0.90 mm) through No. 15 (3.80 mm). The burs are supplied in a 36-hole wood bur box sized for 3\/32\" shanks, measuring 5\" wide by 3\" deep by 2-5\/8\" high.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eSize stamped on each 3\/32\" shank for easy identification\u003c\/li\u003e\n\u003cli\u003eLonger service life compared to machine-cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eCovers 15 graduated ball bur sizes, 0.90 mm – 3.80 mm, in a single kit\u003c\/li\u003e\n\u003cli\u003eSupplied in a 36-hole wood bur box for 3\/32\" shanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eDue to ongoing supply constraints, this kit will ship as a \u003cstrong\u003epartial set\u003c\/strong\u003e at a reduced price. Otto Frei will contact you after your order is placed to confirm which sizes are available and provide an updated kit price. Unavailable sizes are \u003cstrong\u003enot\u003c\/strong\u003e placed on back order.\u003c\/p\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582578786518,"sku":"119.311","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-ball-bur-kit-of-15-pieces-otto-frei.jpg?v=1719956972"},{"product_id":"spearhead-hss-ball-bur-kit-29-pieces-0-90-5-00mm","title":"Spearhead High Speed Steel Ball Bur Kit of 29 Pieces","description":"\u003cp\u003e\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e If you order this set, it will not be complete. Spearhead has been unable to supply all sizes of ball burs as ordered, and ship dates on open back orders are unavailable. \u003cstrong\u003eIf you order this set, Otto Frei will supply a partial set only, at a reduced price, based on what burs are in stock on the date of your order.\u003c\/strong\u003e For example, as of 11\/18\/2024, only 25 of the 29 sizes were in stock — the number available may be more or less on the date of your order. Otto Frei will contact you with the number of burs in stock, the sizes that cannot be supplied, and the updated (reduced) kit price. \u003cstrong\u003eThere will be no back orders for unavailable sizes, as lead times are unknown and restocking is random.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtto Frei carries the Spearhead line of High Speed Steel (HSS) ball burs, hand cut by expert craftsmen in the USA. Spearhead HSS round burs are easily identified by the size stamped directly on the 3\/32\" shank. While priced higher than imported Tungsten Vanadium Carbon Steel burs, these HSS burs maintain their edge longer and deliver extended service life compared to machine-cut Tungsten Vanadium alternatives. HSS ball burs are the choice of quality jewelers who demand consistent, reliable performance.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eSize stamped on each 3\/32\" shank for easy identification\u003c\/li\u003e\n\u003cli\u003eLonger service life compared to Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eSet of 29 sizes ranging from 0.90 mm to 5.00 mm (subject to partial availability — see notice above)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHigh Speed Steel (HSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut Type\u003c\/th\u003e\n\u003ctd\u003eHand cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Quantity (full set)\u003c\/th\u003e\n\u003ctd\u003e29 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.90 mm – 5.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eWhen complete, this kit includes 1 each of the following Spearhead HSS Ball Burs (subject to partial availability — see notice above):\u003c\/p\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.341\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.342\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.343\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.344\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.345\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.346\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.347\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e2.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.348\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.349\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e2.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.350\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e2.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.351\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e2.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.352\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e3.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.353\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e3.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.354\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.355\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e3.80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.356\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.357\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e4.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.358\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.359\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e4.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.360\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e5.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eNote: The full set includes 29 sizes; only 20 are listed above. The remaining 9 sizes were not detailed in the source product data.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eOtto Frei will contact you after your order is placed to confirm which burs are in stock, which sizes cannot be supplied, and the adjusted kit price. No back orders will be placed for out-of-stock sizes due to unpredictable restocking timelines.\u003c\/p\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582579409110,"sku":"119.312","price":214.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-ball-bur-kit-of-29-pieces-otto-frei.jpg?v=1719956972"},{"product_id":"spearhead-hss-ball-bur-master-kit-33-pieces-0-90-11mm","title":"Spearhead High Speed Steel Ball Bur Master Kit of 33 Pieces","description":"\u003cp\u003eBall burs cut round seats and hollows in metal, and a master set puts every graduated size within reach at the bench.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notice: This set will ship incomplete.\u003c\/strong\u003e Due to ongoing supply constraints, Spearhead has been unable to fulfill all sizes in this kit as ordered. Otto Frei will contact you with the exact burs in stock, the sizes unavailable, and an updated reduced kit price at the time of your order. \u003cstrong\u003eWe are not back-ordering missing sizes, as restocking timelines are unknown and inventory returns randomly.\u003c\/strong\u003e For reference, as of 7\/29\/2026, 23 of the 33 sizes were available; actual stock will vary on your order date.\u003c\/p\u003e\n\u003cp\u003eThe Spearhead High Speed Steel (HSS) Ball Bur Master Kit brings together individually sized round burs in one set, covering a wide metric size range from 0.90 mm through 11.00 mm. Each bur is hand cut by expert craftsmen in the USA, a level of craftsmanship that sets Spearhead HSS burs apart from imported Tungsten Vanadium Carbon Steel alternatives. The size is stamped directly on every 3\/32\" shank, making identification fast and reliable at the bench.\u003c\/p\u003e\n\u003cp\u003eHigh Speed Steel is a harder material than Tungsten Vanadium Carbon Steel, which means these burs stay sharper longer and deliver an extended service life under demanding professional use. Quality jewelers who rely on precision and longevity favor HSS burs for exactly this reason.\u003c\/p\u003e\n\u003cp\u003eThe set is supplied in a 36-hole wood bur box sized for 3\/32\" shanks, measuring 5\" wide by 3\" deep by 2-5\/8\" high, so each size has its own seat.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction, harder and longer-lasting than Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eSize stamped on each 3\/32\" shank for quick bench identification\u003c\/li\u003e\n\u003cli\u003e33-piece set spanning 0.90 mm – 11.00 mm in graduated metric sizes\u003c\/li\u003e\n\u003cli\u003ePreferred by quality jewelers for precision and extended service life\u003c\/li\u003e\n\u003cli\u003eSupplied in a 36-hole wood bur box for 3\/32\" shanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eStock availability varies across sizes. Otto Frei will contact you after ordering with confirmed available sizes, any sizes that cannot be supplied, and an updated kit price reflecting what is in stock. No backorders are accepted for unavailable sizes due to indeterminate restock lead times.\u003c\/p\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582579638486,"sku":"119.313","price":264.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-ball-bur-master-kit-of-33-pieces-otto-frei.jpg?v=1719956972"},{"product_id":"spearhead-hss-45-degree-bearing-bur-kit-14-pieces-1-1mm-7-2mm","title":"Spearhead High Speed Steel 45 Degree Bearing Bur Kit of 14 Pieces","description":"\u003cp\u003eA 45 degree bearing bur cuts the seat a stone sits in, and this kit covers that job across the sizes a setter reaches for most. Spearhead high speed steel bearing burs are hand cut by expert craftsmen in the USA for sharpness and service life beyond machine cut tungsten vanadium carbon steel burs, and each one carries its size stamped directly on the 3\/32\" shank so it is easy to pick out of the box.\u003c\/p\u003e\n\u003cp\u003eThe kit holds 14 burs, one per size, from No. 2 (1.1 mm) through No. 28 (7.2 mm), in a 36 hole wood bur box measuring 5\" wide by 3\" deep by 2-5\/8\" high. The run of sizes covers the most commonly needed seats, which makes it a starter set or a shop reference kit.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh speed steel holds an edge longer than machine cut tungsten vanadium carbon steel\u003c\/li\u003e\n\u003cli\u003eSize stamped on every 3\/32\" shank for quick identification\u003c\/li\u003e\n\u003cli\u003e45 degree angle cuts bearings and setting seats\u003c\/li\u003e\n\u003cli\u003e14 pieces spanning 1.1 mm – 7.2 mm, one bur per size\u003c\/li\u003e\n\u003cli\u003e36 hole wood box sized for 3\/32\" shank burs, with room to grow the set\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582580228310,"sku":"119.315","price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-45-degree-bearing-bur-kit-of-14-pieces-otto-frei.jpg?v=1719956966"},{"product_id":"spearhead-hss-45-degree-bearing-bur-kit-24-pieces-no2-no30","title":"Spearhead High Speed Steel 45 Degree Bearing Bur Kit of 24 Pieces","description":"\u003cp\u003eA 45-degree bearing bur, also called a hart bur, cuts the angled seat that holds a stone in place during setting work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notice: This set will ship incomplete.\u003c\/strong\u003e Due to ongoing supply constraints, Spearhead has been unable to fulfill all sizes in this kit as ordered. Otto Frei will contact you with the exact burs in stock, the sizes unavailable, and an updated reduced kit price at the time of your order. \u003cstrong\u003eWe are not back-ordering missing sizes, as restocking timelines are unknown and inventory returns randomly.\u003c\/strong\u003e For reference, as of 7\/29\/2026, 15 of the 24 sizes were available; actual stock will vary on your order date.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpearhead High Speed Steel 45-degree bearing burs\u003c\/strong\u003e are hand cut by expert craftsmen in the USA, delivering the precision and longevity that quality jewelers demand. Each bur in this kit is sized and stamped directly on the 3\/32\" shank, a hallmark of the Spearhead line that makes identification fast and reliable at the bench.\u003c\/p\u003e\n\u003cp\u003eHigh Speed Steel outperforms imported Tungsten Vanadium Carbon Steel burs in hardness and edge retention. Because these burs are hand cut rather than machine cut, they hold a sharper edge longer, reducing the frequency of replacement and delivering cleaner, more consistent seats. HSS 45-degree bearing burs are the preferred choice of quality jewelers for stone setting work.\u003c\/p\u003e\n\u003cp\u003eThis kit assembles the first 24 sizes in the Spearhead HSS 45-degree bearing bur line, spanning \u003cstrong\u003eNo. 2 (1.1mm) through No. 30 (8.0mm)\u003c\/strong\u003e, a comprehensive range suited to everyday setting needs. The burs arrive in a 36-hole wood bur box sized for 3\/32\" shanks, measuring 5\" wide by 3\" deep by 2-5\/8\" high. No. 34 (11.1mm) is not included in this set and is available separately as Otto Frei part #119.414.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe following numbers are not manufactured in the HSS 45-degree bearing bur line and are therefore not present in any set: No. 1, 21, 23, 25, 27, 29, 31, and 33.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel construction for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eLonger service life compared to Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eSize stamped on each 3\/32\" shank for quick bench identification\u003c\/li\u003e\n\u003cli\u003e45-degree bearing angle suited to stone setting applications\u003c\/li\u003e\n\u003cli\u003eKit spans No. 2 (1.1mm) – No. 30 (8.0mm), covering 24 sizes\u003c\/li\u003e\n\u003cli\u003eSupplied in a 36-hole wood bur box for 3\/32\" shanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit may ship incomplete\u003c\/strong\u003e due to supply constraints; Otto Frei will confirm available sizes and adjust pricing accordingly.\u003c\/li\u003e\n\u003cli\u003eNo. 34 (11.1mm) is not included in this kit; it is available separately as Otto Frei part #119.414.\u003c\/li\u003e\n\u003cli\u003eNumbers 1, 21, 23, 25, 27, 29, 31, and 33 are not produced in the HSS 45-degree bearing bur line.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582581080278,"sku":"119.316","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-45-degree-bearing-bur-kit-of-24-pieces-otto-frei.jpg?v=1719956967"},{"product_id":"spearhead-hss-90-degree-bearing-bur-kit-14-pieces-0-9-7-2mm","title":"Spearhead High Speed Steel 90 Degree Bearing Bur Kit of 14 Pieces","description":"\u003cp\u003eA 90-degree bearing bur cuts the flat-bottomed seat that a stone sits down into, and this kit covers the range a setter reaches for most.\u003c\/p\u003e\n\u003cp\u003eSpearhead High Speed Steel (HSS) 90 degree bearing burs are hand cut by expert craftsmen in the USA and are a preferred choice of quality jewelers everywhere. Each bur in the Spearhead line features the size stamped directly on the 3\/32\" shank, making identification fast and reliable at the bench. Compared to imported Tungsten Vanadium Carbon Steel burs, these HSS burs are harder, stay sharper longer, and deliver extended service life, making them a smart investment for professional stone setting work.\u003c\/p\u003e\n\u003cp\u003eThis 14-piece kit spans from size No. 1 (0.90 mm) through size No. 28 (7.2 mm), giving you a comprehensive range of 90 degree setting burs to handle a wide variety of stone sizes in a single set. The burs are supplied in a 36-hole wood bur box sized for 3\/32\" shanks, measuring 5\" wide by 3\" deep by 2-5\/8\" high, so every size has its own seat on the bench.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Speed Steel construction for superior hardness and extended service life\u003c\/li\u003e\n\u003cli\u003eHand cut in the USA by expert craftsmen\u003c\/li\u003e\n\u003cli\u003e90 degree bearing angle for precise stone setting\u003c\/li\u003e\n\u003cli\u003eSize stamped on each 3\/32\" shank for quick identification\u003c\/li\u003e\n\u003cli\u003eHarder and longer-lasting than Tungsten Vanadium Carbon Steel alternatives\u003c\/li\u003e\n\u003cli\u003e14-piece kit covers sizes 0.90 mm – 7.2 mm in a single purchase\u003c\/li\u003e\n\u003cli\u003eSupplied in a 36-hole wood bur box for 3\/32\" shanks\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582581473494,"sku":"119.318","price":109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-90-degree-bearing-bur-kit-of-14-pieces-otto-frei.jpg?v=1719956967"},{"product_id":"spearhead-hss-90-degree-setting-bur-master-kit-33-pieces-0-90-11-10mm","title":"Spearhead High Speed Steel 90 Degree Bearing Bur Master Kit of 33 Pieces","description":"\u003cp\u003eA 90-degree setting bur cuts the bearing seat a stone drops into, so the girdle sits level and fully supported before the metal is closed over it, and this master kit carries one bur in every size the range offers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notice: This set will ship incomplete.\u003c\/strong\u003e Due to ongoing supply constraints, Spearhead has been unable to fulfill all sizes in this kit as ordered. Otto Frei will contact you with the exact burs in stock, the sizes unavailable, and an updated reduced kit price at the time of your order. \u003cstrong\u003eWe are not back-ordering missing sizes, as restocking timelines are unknown and inventory returns randomly.\u003c\/strong\u003e For reference, as of 7\/29\/2026, 25 of the 33 sizes were available. Actual stock will vary on your order date.\u003c\/p\u003e\n\u003cp\u003eSpearhead High Speed Steel (HSS) 90-degree setting burs are hand cut by expert craftsmen in the USA. Identifiable by the size stamped on each 3\/32\" shank, these burs offer superior hardness and longer service life compared to machine-cut Tungsten Vanadium Carbon Steel burs. HSS setting burs are the preferred choice of quality jewelers who demand consistent, precise seat cutting across a full range of stone sizes.\u003c\/p\u003e\n\u003cp\u003eThis master kit represents the complete Spearhead HSS 90-degree setting bur range, one bur per size, spanning 0.90 mm through 11.10 mm.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eLonger service life than machine-cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003e90-degree included angle for precise stone seat cutting\u003c\/li\u003e\n\u003cli\u003eSize stamped on each 3\/32\" shank for easy identification\u003c\/li\u003e\n\u003cli\u003eCovers a wide metric size range: 0.90 mm – 11.10 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.421\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.422\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.423\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.424\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.425\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.426\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.427\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e2.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.428\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.429\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e2.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.430\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e2.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.431\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e2.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.432\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e3.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.433\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e3.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.434\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.435\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e3.80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.436\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.437\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e4.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.438\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.439\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e4.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.440\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e5.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.442\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e5.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.443\u003c\/td\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003ctd\u003e5.40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.444\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e5.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.445\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e5.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.446\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e6.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.447\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003ctd\u003e6.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.448\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e7.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.449\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003ctd\u003e7.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.450\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e8.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.451\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003ctd\u003e8.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.452\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003e9.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.453\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003ctd\u003e10.40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.454\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003ctd\u003e11.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThis kit is currently subject to partial fulfillment only. Otto Frei will reach out after your order is placed to confirm available sizes and provide an adjusted price based on current inventory. Missing sizes are \u003cstrong\u003enot\u003c\/strong\u003e placed on back order.\u003c\/p\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582581997782,"sku":"119.319","price":278.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-90-degree-bearing-bur-master-kit-of-33-pieces-otto-frei.jpg?v=1719956967"},{"product_id":"spearhead-hss-bud-bur-kit-15-pieces-no2-no18","title":"Spearhead High Speed Steel Bud Bur Kit of 15 Pieces","description":"\u003cp\u003eBud burs cut and shape fine detail at the bench, and Spearhead High Speed Steel (HSS) Bud Burs are hand cut by expert craftsmen in the USA. You can identify genuine Spearhead HSS burs by the size stamped directly on the 3\/32\" shank. HSS burs maintain their edge longer and stay sharper through extended use compared to machine-cut Tungsten Vanadium Carbon Steel burs, making them the preferred choice of quality jewelers worldwide.\u003c\/p\u003e\n\u003cp\u003eThis kit is designed to include the first 15 sizes of Spearhead HSS Bud Burs, ranging from No. 2 (1.10 mm) through No. 18 (4.50 mm). Bud Bur numbers 1, 15, and 17 are not manufactured in the bud shape and are therefore not included in this set.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notice Regarding This Kit:\u003c\/strong\u003e Due to ongoing supply constraints, \u003cstrong\u003ethis set cannot be guaranteed to ship complete.\u003c\/strong\u003e Spearhead has been unable to fulfill all sizes consistently, and Otto Frei does not have confirmed ship dates on outstanding back orders. \u003cstrong\u003eIf you order this set, you will receive a partial kit at a reduced price based on what sizes are in stock on the date your order is placed.\u003c\/strong\u003e We will contact you with the available sizes and an updated kit price before processing. We are not back-ordering missing sizes, as restocking is unpredictable and irregular. \u003cem\u003eTo purchase individual bud burs by size, see the link on this page.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior edge retention and longer service life\u003c\/li\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eSize stamped on each 3\/32\" shank for easy identification\u003c\/li\u003e\n\u003cli\u003eCovers 15 sizes from 1.10 mm (No. 2) through 4.50 mm (No. 18)\u003c\/li\u003e\n\u003cli\u003ePreferred by quality jewelers over machine-cut Tungsten Vanadium burs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThe full set contains one each of the following bud burs:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.462\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.463\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.464\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.465\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.466\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.467\u003c\/td\u003e\n\u003ctd\u003e2.10 mm\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.468\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.469\u003c\/td\u003e\n\u003ctd\u003e2.50 mm\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.470\u003c\/td\u003e\n\u003ctd\u003e2.70 mm\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.471\u003c\/td\u003e\n\u003ctd\u003e2.90 mm\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.472\u003c\/td\u003e\n\u003ctd\u003e3.10 mm\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.473\u003c\/td\u003e\n\u003ctd\u003e3.30 mm\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.474\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.476\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.478\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003eBud Bur numbers 1, 15, and 17 are not manufactured in the bud shape and are not part of this set.\u003c\/li\u003e\n\u003cli\u003eThis kit is currently subject to partial fulfillment only. You will be contacted with available sizes and a revised price before your order ships.\u003c\/li\u003e\n\u003cli\u003eMissing sizes are not being back-ordered due to unpredictable restocking timelines.\u003c\/li\u003e\n\u003cli\u003eIndividual bud burs are available for purchase separately; see the individual bud bur product page for current stock.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582582227158,"sku":"119.321","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-bud-bur-kit-of-15-pieces-otto-frei.jpg?v=1719956966"},{"product_id":"spearhead-hss-bud-bur-master-kit-23-pieces-no2-no34","title":"Spearhead High Speed Steel Bud Bur Master Kit of 23 Pieces","description":"\u003cp\u003eBud burs cut and shape fine detail at the bench, and Spearhead High Speed Steel (HSS) burs are hand cut by expert craftsmen in the USA. You can identify genuine Spearhead HSS burs by the size stamped directly on their 3\/32\" shanks. Compared to imported Tungsten Vanadium Carbon Steel burs, these HSS burs are harder, stay sharper longer, and deliver a significantly extended service life. HSS burs are the preferred choice of quality jewelers worldwide.\u003c\/p\u003e\n\u003cp\u003eThis master kit is the complete range of HSS Bud Burs, spanning from size No. 2 (1.10 mm) through size No. 34 (11.1 mm), every bud bur size that Spearhead produces. Sizes 1, 15, 17, 19, 21, 23, 25, 27, 29, 31, and 33 are not manufactured in the bud shape and are not part of this set.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notice: This set will ship incomplete.\u003c\/strong\u003e Due to ongoing supply constraints, Spearhead has been unable to fulfill all sizes in this kit as ordered. Otto Frei will contact you with the exact burs in stock, the sizes unavailable, and an updated reduced kit price at the time of your order. \u003cstrong\u003eWe are not back-ordering missing sizes, as restocking timelines are unknown and inventory returns randomly.\u003c\/strong\u003e For reference, as of 7\/29\/2026, 15 of the 23 sizes were available; actual stock will vary on your order date.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eSize stamped on each 3\/32\" shank for easy identification\u003c\/li\u003e\n\u003cli\u003eLonger service life compared to machine-cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eComplete range of all available bud bur sizes in a single kit\u003c\/li\u003e\n\u003cli\u003eCovers sizes No. 2 through No. 34 (1.10 mm – 11.1 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThe full kit contains one each of the following bud burs:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.462\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.463\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.464\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.465\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.466\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.467\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e2.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.468\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.469\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e2.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.470\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e2.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.471\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e2.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.472\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e3.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.473\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e3.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.474\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.476\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.478\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.480\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e5.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.482\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e5.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.484\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e5.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.486\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e6.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.488\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e7.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.490\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e8.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.492\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003e9.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.494\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003ctd\u003e11.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eBur sizes 1, 15, 17, 19, 21, 23, 25, 27, 29, 31, and 33 are \u003cem\u003enot manufactured\u003c\/em\u003e in the bud shape and are not included. Due to current supply constraints, orders for this kit will be fulfilled as a partial set at a reduced price. Otto Frei will contact you after ordering with available sizes and adjusted pricing.\u003c\/p\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582582751446,"sku":"119.322","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-bud-bur-master-kit-of-23-pieces-otto-frei.jpg?v=1719956965"},{"product_id":"spearhead-hss-flame-bur-master-kit-14-pieces-1-10-8-00mm","title":"Spearhead High Speed Steel Flame Bur Master Kit of 14 Pieces","description":"\u003cp\u003eFlame burs cut and refine tapered, pointed recesses and contours in metal, and this master set steps through the working sizes in one box.\u003c\/p\u003e\n\u003cp\u003eThe Spearhead High Speed Steel Flame Bur Master Kit brings together 14 hand-cut HSS flame burs in a single organized wood box, covering sizes from 1.10 mm through 8.00 mm. Hand cut by expert craftsmen in the USA, Spearhead HSS burs deliver greater hardness and longer service life compared to machine-cut Tungsten Vanadium Carbon Steel burs. Each bur features the size number stamped directly on the 3\/32\" shank, a reliable hallmark of the Spearhead brand that makes identification fast and accurate at the bench. Quality jewelers who demand consistent, long-lasting cutting performance rely on HSS burs for precisely this reason.\u003c\/p\u003e\n\u003cp\u003eThe set is supplied in a 36-hole wood bur box sized for 3\/32\" shanks, measuring 5\" wide by 3\" deep by 2-5\/8\" high, leaving room to add sizes as the bench grows.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior hardness and extended sharpness\u003c\/li\u003e\n\u003cli\u003eLonger service life than machine-cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eSize number stamped on each shank for quick, at-a-glance identification\u003c\/li\u003e\n\u003cli\u003e3\/32\" shank diameter fits standard flex shaft and rotary handpieces\u003c\/li\u003e\n\u003cli\u003eComplete set of 14 burs spanning 1.10 mm – 8.00 mm\u003c\/li\u003e\n\u003cli\u003eStored and presented in a 36-hole wood box for organized bench storage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582583668950,"sku":"119.327","price":112.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-flame-bur-master-kit-of-14-pieces-otto-frei.jpg?v=1719956965"},{"product_id":"spearhead-hss-setting-bur-set-29-pieces-0-90-8-00mm","title":"Spearhead High Speed Burs Setting Bur Set of 29 Pieces","description":"\u003cp\u003e\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e If you order this set, it will not be complete. Spearhead has not been able to supply all sizes of Setting Burs as ordered. Spearhead will not provide ship dates on open back orders. \u003cstrong\u003eIf you order this set, Otto Frei will supply a partial set only, at a reduced price, based on what burs are in stock on the date of your order.\u003c\/strong\u003e For example, as of 2\/25\/2026, only 17 of the 29 sizes were in stock — the count available may be more or less on your order date. Otto Frei will contact you with the number of burs in stock, the sizes that cannot be supplied, and the updated (reduced) kit price. \u003cstrong\u003eBack orders are not accepted for missing sizes, as restocking is random and unpredictable.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSpearhead High Speed Steel (HSS) Setting Burs are hand-cut by expert craftsmen in the USA. Every bur in the Spearhead line is stamped with its size on the 3\/32\" shank for easy identification. HSS burs stay sharper longer and deliver greater service life than machine-cut Tungsten Vanadium Carbon Steel burs, making them the preferred choice of quality jewelers. This set contains one each of 29 setting burs ranging from 0.90 mm to 8.00 mm, numbered #1 through #30 (size #21 is not made).\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHand-cut High Speed Steel (HSS) construction for superior sharpness and longevity\u003c\/li\u003e\n\u003cli\u003eMade in the USA by expert craftsmen\u003c\/li\u003e\n\u003cli\u003eSize number stamped on each 3\/32\" shank for quick identification\u003c\/li\u003e\n\u003cli\u003eLonger service life compared to machine-cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eCovers a broad size range from 0.90 mm to 8.00 mm in a single set\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePartial set only — see notice above regarding current stock availability\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHigh Speed Steel (HSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFull Set Quantity\u003c\/th\u003e\n\u003ctd\u003e29 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e0.90 mm – 8.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Numbers\u003c\/th\u003e\n\u003ctd\u003e#1 – #30 (size #21 not made)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eWhen complete, this set contains one each of the following Spearhead HSS Setting Burs. \u003cstrong\u003eDue to supply limitations, only a partial set can be provided — see the notice at the top of this page.\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.671\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.672\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.673\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.674\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.675\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.676\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.678\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.679\u003c\/td\u003e\n\u003ctd\u003e2.50 mm\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.680\u003c\/td\u003e\n\u003ctd\u003e2.70 mm\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.681\u003c\/td\u003e\n\u003ctd\u003e2.90 mm\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.682\u003c\/td\u003e\n\u003ctd\u003e3.10 mm\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.683\u003c\/td\u003e\n\u003ctd\u003e3.30 mm\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.684\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.685\u003c\/td\u003e\n\u003ctd\u003e3.80 mm\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.686\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.687\u003c\/td\u003e\n\u003ctd\u003e4.30 mm\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.688\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.689\u003c\/td\u003e\n\u003ctd\u003e4.70 mm\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.690\u003c\/td\u003e\n\u003ctd\u003e5.00 mm\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.692\u003c\/td\u003e\n\u003ctd\u003e5.20 mm\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.693\u003c\/td\u003e\n\u003ctd\u003e5.40 mm\u003c\/td\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.694\u003c\/td\u003e\n\u003ctd\u003e5.60 mm\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.695\u003c\/td\u003e\n\u003ctd\u003e5.90 mm\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.696\u003c\/td\u003e\n\u003ctd\u003e6.30 mm\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.696.5\u003c\/td\u003e\n\u003ctd\u003e6.50 mm\u003c\/td\u003e\n\u003ctd\u003e26.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.697\u003c\/td\u003e\n\u003ctd\u003e6.70 mm\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.698\u003c\/td\u003e\n\u003ctd\u003e7.20 mm\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.699\u003c\/td\u003e\n\u003ctd\u003e7.60 mm\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.700\u003c\/td\u003e\n\u003ctd\u003e8.00 mm\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eBurs are marked with American bur size numbers #1 through #30 (size #21 is not manufactured). Otto Frei does not back-order unavailable sizes from this set. Customers will be contacted after ordering with current stock counts, unavailable sizes, and an adjusted price reflecting the partial set.\u003c\/p\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582584193238,"sku":"119.333","price":234.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-burs-setting-bur-set-of-29-pieces-otto-frei.jpg?v=1719956965"},{"product_id":"spearhead-hss-setting-bur-master-set-33-pieces-0-90-11mm","title":"Spearhead High Speed Steel Setting Bur Master Set of 33 Pieces","description":"\u003cp\u003e\u003cstrong\u003eImportant Notice Regarding This Set:\u003c\/strong\u003e If you order this set, it \u003cstrong\u003ewill not arrive complete.\u003c\/strong\u003e Spearhead has been unable to supply all sizes in this master set, and Otto Frei does not have confirmed ship dates on open back orders. \u003cstrong\u003eOrders for this set will be fulfilled as a partial set only, at a reduced price, based on sizes in stock at the time of your order.\u003c\/strong\u003e For example, as of 2\/7\/2025, only 17 of the 33 sizes were available — the count may be higher or lower on the date you order.\u003c\/p\u003e\u003cp\u003eOnce your order is placed, Otto Frei will contact you with the specific sizes available, the sizes that cannot be supplied, and the updated reduced kit price. \u003cstrong\u003eBack orders are not being accepted for missing sizes, as restocking is random and ship dates are unknown.\u003c\/strong\u003e To purchase individual setting burs by size, visit the individual setting bur page.\u003c\/p\u003e\u003cp\u003eSpearhead High Speed Steel (HSS) setting burs are hand cut by expert craftsmen in the USA. Each bur shank is stamped with the size for easy identification. HSS burs retain their edge longer than machine-cut Tungsten Vanadium Carbon Steel burs and are the preferred choice of quality jewelers worldwide.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior edge retention and longer service life\u003c\/li\u003e\n\u003cli\u003eHarder and longer-lasting than imported Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eSize number stamped on each 3\/32\" shank for quick identification\u003c\/li\u003e\n\u003cli\u003eCovers bur numbers #1 through #34 (size #21 is not manufactured)\u003c\/li\u003e\n\u003cli\u003e33 burs spanning 0.90 mm through 11.00 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHigh Speed Steel (HSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\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\u003e0.90 mm – 11.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBur Number Range\u003c\/th\u003e\n\u003ctd\u003e#1 – #34 (size #21 not manufactured)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSet Quantity (complete)\u003c\/th\u003e\n\u003ctd\u003e33 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eWhen complete, this set contains one each of the following burs (subject to stock availability — see notice above):\u003c\/p\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.671\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.672\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.673\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.674\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.675\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.676\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.677\u003c\/td\u003e\n\u003ctd\u003e2.10 mm\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.678\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.679\u003c\/td\u003e\n\u003ctd\u003e2.50 mm\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.680\u003c\/td\u003e\n\u003ctd\u003e2.70 mm\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.681\u003c\/td\u003e\n\u003ctd\u003e2.90 mm\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.682\u003c\/td\u003e\n\u003ctd\u003e3.10 mm\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.683\u003c\/td\u003e\n\u003ctd\u003e3.30 mm\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.684\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.685\u003c\/td\u003e\n\u003ctd\u003e3.80 mm\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.686\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.687\u003c\/td\u003e\n\u003ctd\u003e4.30 mm\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.688\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.689\u003c\/td\u003e\n\u003ctd\u003e4.70 mm\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.690\u003c\/td\u003e\n\u003ctd\u003e5.00 mm\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.692\u003c\/td\u003e\n\u003ctd\u003e5.20 mm\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.693\u003c\/td\u003e\n\u003ctd\u003e5.40 mm\u003c\/td\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.694\u003c\/td\u003e\n\u003ctd\u003e5.60 mm\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.695\u003c\/td\u003e\n\u003ctd\u003e5.90 mm\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.696\u003c\/td\u003e\n\u003ctd\u003e6.30 mm\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.697\u003c\/td\u003e\n\u003ctd\u003e6.70 mm\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.698\u003c\/td\u003e\n\u003ctd\u003e7.20 mm\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.699\u003c\/td\u003e\n\u003ctd\u003e7.60 mm\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.700\u003c\/td\u003e\n\u003ctd\u003e8.00 mm\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.701\u003c\/td\u003e\n\u003ctd\u003e8.90 mm\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.702\u003c\/td\u003e\n\u003ctd\u003e9.60 mm\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.703\u003c\/td\u003e\n\u003ctd\u003e10.40 mm\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.704\u003c\/td\u003e\n\u003ctd\u003e11.00 mm\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThis set will ship as a partial set at a reduced price — Otto Frei will contact you with details after ordering.\u003c\/li\u003e\n\u003cli\u003eBack orders for missing sizes are not accepted due to unpredictable restocking.\u003c\/li\u003e\n\u003cli\u003eBur size #21 is not manufactured and is not part of this set.\u003c\/li\u003e\n\u003cli\u003eTo purchase individual sizes, visit the Spearhead individual setting bur page.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43582584881366,"sku":"119.334","price":278.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-setting-bur-master-set-of-33-pieces-otto-frei.jpg?v=1719956965"},{"product_id":"spearhead-hss-cone-bur-master-kit-23-pieces-no2-no34","title":"Spearhead High Speed Steel Cone Bur Master Kit of 23 Pieces","description":"\u003cp\u003eCone burs cut and shape metal at the bench, and this kit collects the full cone range in one set. Spearhead High Speed Steel (HSS) Cone Burs are hand cut by expert craftsmen in the USA, and each bur is stamped with its size on the 3\/32\" shank for easy identification at the bench. While HSS burs carry a higher price point than imported Tungsten Vanadium Carbon Steel burs, they maintain a sharper edge longer and deliver superior service life over machine-cut alternatives, making them the preferred choice of quality jewelers everywhere.\u003c\/p\u003e\u003cp\u003eThis master kit contains one each of every HSS Cone Bur in the Spearhead line, ranging from No. 2 (1.10 mm) through No. 34 (11.10 mm), for a total of 23 pieces. It is an ideal starter set or bench reference collection covering the full size spectrum available in this profile.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHand-cut High Speed Steel construction for superior sharpness and edge retention\u003c\/li\u003e\n\u003cli\u003eSize stamped on each 3\/32\" shank for quick identification\u003c\/li\u003e\n\u003cli\u003eCovers the complete range of available HSS Cone Bur sizes in a single kit\u003c\/li\u003e\n\u003cli\u003e23 pieces spanning No. 2 (1.10 mm) through No. 34 (11.10 mm)\u003c\/li\u003e\n\u003cli\u003eLonger service life compared to Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eThis master kit contains one each of the following burs:\u003c\/p\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.522\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.523\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.524\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.525\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.526\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.527\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e2.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.528\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.529\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e2.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.530\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e2.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.531\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e2.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.532\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e3.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.533\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e3.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.534\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.536\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.538\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.540\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e5.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.542\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e5.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.544\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e5.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.546\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e6.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.548\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e7.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.550\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e8.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.552\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003e9.60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.554\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003ctd\u003e11.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003eHSS Cone Burs are not manufactured in sizes 1, 15, 17, 19, 21, 23, 25, 27, 29, 31, or 33. This kit includes all available sizes in the Spearhead HSS Cone Bur line.\u003c\/p\u003e","brand":"Spearhead","offers":[{"title":"Default Title","offer_id":43586842165462,"sku":"119.325","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/spearhead-high-speed-steel-cone-bur-master-kit-of-23-pieces-otto-frei.jpg?v=1719955765"},{"product_id":"spearhead-hss-ball-burs-0-90-11-00mm","title":"Spearhead High Speed Steel (HSS) Ball Burs 0.90 mm to 11.00 mm","description":"\u003cp\u003eBall burs cut and shape rounded forms at the bench, and Spearhead High Speed Steel (HSS) Ball Burs are precision-cut in the United States using modern equipment operated by highly trained professionals. Available in 34 sizes ranging from 0.90 mm to 11.00 mm, these burs are sold individually so you can stock exactly what your bench requires.\u003c\/p\u003e\n\u003cp\u003eOtto Frei carries the Spearhead line of HSS Ball Burs exclusively. Each bur is easily identified by the size imprinted directly on the shank. Spearhead burs feature uniform, consistent geometries that produce clean, precise cuts every time. Professional stone setters rely on HSS burs because they outlast Tungsten Vanadium Steel burs, including German and Swiss-made alternatives, making them the more economical choice over time.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for extended tool life\u003c\/li\u003e\n\u003cli\u003ePrecision-cut in the United States with modern equipment\u003c\/li\u003e\n\u003cli\u003eSize imprinted on the shank for fast, reliable identification\u003c\/li\u003e\n\u003cli\u003eUniform, consistent geometries for clean, precise cuts\u003c\/li\u003e\n\u003cli\u003ePreferred by professional stone setters for durability and economy\u003c\/li\u003e\n\u003cli\u003eOutlasts Tungsten Vanadium Steel burs for lower cost-per-use\u003c\/li\u003e\n\u003cli\u003eSold individually, so you choose only the sizes you need\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.341\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.342\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.343\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.344\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.345\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.346\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.347\u003c\/td\u003e\n\u003ctd\u003e2.10 mm\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.348\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.349\u003c\/td\u003e\n\u003ctd\u003e2.50 mm\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.350\u003c\/td\u003e\n\u003ctd\u003e2.70 mm\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.351\u003c\/td\u003e\n\u003ctd\u003e2.90 mm\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.352\u003c\/td\u003e\n\u003ctd\u003e3.10 mm\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.353\u003c\/td\u003e\n\u003ctd\u003e3.30 mm\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.354\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.355\u003c\/td\u003e\n\u003ctd\u003e3.80 mm\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.356\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.357\u003c\/td\u003e\n\u003ctd\u003e4.30 mm\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.358\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.359\u003c\/td\u003e\n\u003ctd\u003e4.70 mm\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.360\u003c\/td\u003e\n\u003ctd\u003e5.00 mm\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.362\u003c\/td\u003e\n\u003ctd\u003e5.20 mm\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.363\u003c\/td\u003e\n\u003ctd\u003e5.40 mm\u003c\/td\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.364\u003c\/td\u003e\n\u003ctd\u003e5.60 mm\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.365\u003c\/td\u003e\n\u003ctd\u003e5.90 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Speed Steel 45-Degree Bearing Burs 1.10mm-11.10mm","description":"\u003cp\u003eThese burs cut and true the seat that holds a stone, and shape metal in close quarters where a clean, controlled cut matters. \u003cstrong\u003eSpearhead High Speed Steel (HSS) 45° Hart Burs\u003c\/strong\u003e are precision hand-cut in the USA by expert craftsmen. Known for their exceptional sharpness, durability, and consistency, these burs are the professional jeweler's choice for stone setting and precision metalwork.\u003c\/p\u003e\n\u003cp\u003eEach Spearhead bur is stamped with its size on the \u003cstrong\u003e3\/32\" (2.35 mm) shank\u003c\/strong\u003e for quick identification. 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Each bur is size-stamped on its 3\/32\" shank for instant, at-a-glance identification, a hallmark of the Spearhead line. Compared to imported Tungsten Vanadium Carbon Steel burs, these HSS burs hold their edge longer thanks to the superior hardness of high speed steel, making them the preferred choice for professional stone setting work. Available in 33 sizes ranging from 0.90 mm to 11.10 mm, sold individually.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003e90-degree bearing bur geometry for precise stone seat cutting\u003c\/li\u003e\n\u003cli\u003eSize stamped on the 3\/32\" shank for quick, reliable identification\u003c\/li\u003e\n\u003cli\u003eLonger service life compared to imported Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eAvailable in 33 sizes to accommodate a wide range of stone settings\u003c\/li\u003e\n\u003c\/ul\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\u003cth\u003eBur No.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.421\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.422\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.423\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.424\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.425\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.426\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.427\u003c\/td\u003e\n\u003ctd\u003e2.10 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mm\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.434\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.435\u003c\/td\u003e\n\u003ctd\u003e3.80 mm\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.436\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.437\u003c\/td\u003e\n\u003ctd\u003e4.30 mm\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.438\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.439\u003c\/td\u003e\n\u003ctd\u003e4.70 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mm\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.447\u003c\/td\u003e\n\u003ctd\u003e6.70 mm\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.448\u003c\/td\u003e\n\u003ctd\u003e7.20 mm\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.449\u003c\/td\u003e\n\u003ctd\u003e7.60 mm\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.450\u003c\/td\u003e\n\u003ctd\u003e8.00 mm\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.451\u003c\/td\u003e\n\u003ctd\u003e8.90 mm\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.452\u003c\/td\u003e\n\u003ctd\u003e9.60 mm\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.453\u003c\/td\u003e\n\u003ctd\u003e10.40 mm\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.454\u003c\/td\u003e\n\u003ctd\u003e11.10 mm\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Spearhead","offers":[{"title":".90mm","offer_id":43696771072214,"sku":"119.421","price":5.35,"currency_code":"USD","in_stock":true},{"title":"1.10mm","offer_id":43696771104982,"sku":"119.422","price":5.35,"currency_code":"USD","in_stock":false},{"title":"1.30mm","offer_id":43696771137750,"sku":"119.423","price":5.35,"currency_code":"USD","in_stock":true},{"title":"1.50mm","offer_id":43696771170518,"sku":"119.424","price":5.35,"currency_code":"USD","in_stock":true},{"title":"1.70mm","offer_id":43696771203286,"sku":"119.425","price":5.35,"currency_code":"USD","in_stock":true},{"title":"1.90mm","offer_id":43696771236054,"sku":"119.426","price":5.35,"currency_code":"USD","in_stock":true},{"title":"2.10mm","offer_id":43696771268822,"sku":"119.427","price":5.35,"currency_code":"USD","in_stock":false},{"title":"2.30mm","offer_id":43696771301590,"sku":"119.428","price":5.35,"currency_code":"USD","in_stock":false},{"title":"2.50mm","offer_id":43696771334358,"sku":"119.429","price":6.8,"currency_code":"USD","in_stock":false},{"title":"2.70mm","offer_id":43696771367126,"sku":"119.430","price":6.8,"currency_code":"USD","in_stock":true},{"title":"2.90mm","offer_id":43696771399894,"sku":"119.431","price":6.8,"currency_code":"USD","in_stock":true},{"title":"3.10mm","offer_id":43696771432662,"sku":"119.432","price":6.8,"currency_code":"USD","in_stock":true},{"title":"3.30mm","offer_id":43696771465430,"sku":"119.433","price":8.25,"currency_code":"USD","in_stock":true},{"title":"3.50mm","offer_id":43696771498198,"sku":"119.434","price":8.25,"currency_code":"USD","in_stock":true},{"title":"3.80mm","offer_id":43696771530966,"sku":"119.435","price":8.25,"currency_code":"USD","in_stock":false},{"title":"4.00mm","offer_id":43696771563734,"sku":"119.436","price":8.25,"currency_code":"USD","in_stock":true},{"title":"4.30mm","offer_id":43696771596502,"sku":"119.437","price":8.25,"currency_code":"USD","in_stock":true},{"title":"4.50mm","offer_id":43696771629270,"sku":"119.438","price":8.25,"currency_code":"USD","in_stock":true},{"title":"4.70mm","offer_id":43696771662038,"sku":"119.439","price":9.3,"currency_code":"USD","in_stock":true},{"title":"5.00mm","offer_id":43696771694806,"sku":"119.440","price":9.3,"currency_code":"USD","in_stock":true},{"title":"5.20mm","offer_id":43696771727574,"sku":"119.442","price":9.3,"currency_code":"USD","in_stock":true},{"title":"5.40mm","offer_id":43696771760342,"sku":"119.443","price":9.3,"currency_code":"USD","in_stock":true},{"title":"5.60mm","offer_id":43696771793110,"sku":"119.444","price":9.3,"currency_code":"USD","in_stock":true},{"title":"5.90mm","offer_id":43696771825878,"sku":"119.445","price":9.3,"currency_code":"USD","in_stock":false},{"title":"6.30mm","offer_id":43696771858646,"sku":"119.446","price":9.75,"currency_code":"USD","in_stock":true},{"title":"6.70mm","offer_id":43696771891414,"sku":"119.447","price":9.75,"currency_code":"USD","in_stock":false},{"title":"7.20mm","offer_id":43696771924182,"sku":"119.448","price":9.75,"currency_code":"USD","in_stock":true},{"title":"7.60mm","offer_id":43696771956950,"sku":"119.449","price":9.75,"currency_code":"USD","in_stock":true},{"title":"8.00mm","offer_id":43696771989718,"sku":"119.450","price":9.75,"currency_code":"USD","in_stock":false},{"title":"8.90mm","offer_id":43696772022486,"sku":"119.451","price":11.95,"currency_code":"USD","in_stock":true},{"title":"9.60mm","offer_id":43696772055254,"sku":"119.452","price":11.95,"currency_code":"USD","in_stock":false},{"title":"10.40mm","offer_id":43696772088022,"sku":"119.453","price":12.95,"currency_code":"USD","in_stock":true},{"title":"11.10mm","offer_id":43696772120790,"sku":"119.454","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/high-speed-steel-90-degree-bearing-burs-90mm-11-10mm-otto-frei.jpg?v=1719955425"},{"product_id":"spearhead-hss-bud-burs-1-10mm-11-10mm-3-32-shank","title":"High Speed Steel Bud Burs 1.10mm-11.10mm","description":"\u003cp\u003eBud burs cut and shape fine detail at the bench, and Spearhead High Speed Steel (HSS) bud burs are hand cut by expert craftsmen in the USA. Each bur is size-stamped directly on the 3\/32\" shank, making identification quick and reliable at the bench. Available in 23 sizes ranging from 1.10 mm to 11.10 mm, these bud burs are the go-to choice for professional jewelers who demand consistent, long-lasting cutting performance.\u003c\/p\u003e\n\u003cp\u003eWhile HSS burs carry a higher price point than imported Tungsten Vanadium Carbon Steel burs, they maintain their edge significantly longer and outperform machine-cut alternatives in durability. The hand-cut teeth and superior steel hardness make these the preferred bud burs among quality jewelers worldwide.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eSize stamped on the 3\/32\" shank for easy identification\u003c\/li\u003e\n\u003cli\u003eLonger service life compared to Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003ePreferred by professional jewelers for precision bur work\u003c\/li\u003e\n\u003cli\u003eAvailable in 23 sizes from 1.10 mm to 11.10 mm\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003cth\u003eBur 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Each bur features the size stamped directly on its 3\/32\" shank for quick, reliable identification at the bench.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel construction stays sharper longer than machine-cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eSize stamped on the 3\/32\" shank for easy identification\u003c\/li\u003e\n\u003cli\u003eCylinder bur profile for precise seat cutting and channel work\u003c\/li\u003e\n\u003cli\u003eAvailable in 8 sizes ranging from 1.70mm – 11.10mm\u003c\/li\u003e\n\u003cli\u003ePreferred by quality jewelers for demanding bench applications\u003c\/li\u003e\n\u003c\/ul\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\u003e119.565\u003c\/td\u003e\n\u003ctd\u003e1.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.568\u003c\/td\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.573\u003c\/td\u003e\n\u003ctd\u003e3.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.576\u003c\/td\u003e\n\u003ctd\u003e4.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.579\u003c\/td\u003e\n\u003ctd\u003e4.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.586\u003c\/td\u003e\n\u003ctd\u003e6.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.590\u003c\/td\u003e\n\u003ctd\u003e8.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.594\u003c\/td\u003e\n\u003ctd\u003e11.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Spearhead","offers":[{"title":"1.70mm","offer_id":43696774938838,"sku":"119.565","price":5.35,"currency_code":"USD","in_stock":false},{"title":"2.30mm","offer_id":43696774971606,"sku":"119.568","price":5.35,"currency_code":"USD","in_stock":false},{"title":"3.30mm","offer_id":43696775004374,"sku":"119.573","price":8.25,"currency_code":"USD","in_stock":false},{"title":"4.00mm","offer_id":43696775037142,"sku":"119.576","price":8.25,"currency_code":"USD","in_stock":false},{"title":"4.70mm","offer_id":43696775069910,"sku":"119.579","price":9.3,"currency_code":"USD","in_stock":false},{"title":"6.30mm","offer_id":43696775102678,"sku":"119.586","price":9.75,"currency_code":"USD","in_stock":false},{"title":"8.00mm","offer_id":43696775135446,"sku":"119.590","price":9.75,"currency_code":"USD","in_stock":false},{"title":"11.10mm","offer_id":43696775168214,"sku":"119.594","price":12.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/high-speed-steel-cylinder-burs-1-70mm-11-10mm-otto-frei.jpg?v=1719955423"},{"product_id":"spearhead-hss-inverted-cone-burs-1-70mm-8-00mm-3-32-shank","title":"High Speed Steel Inverted Cone Burs 1.70mm-8.00mm","description":"\u003cp\u003eInverted cone burs cut and shape metal at the bench where a precise, controlled profile is required. Spearhead High Speed Steel (HSS) inverted cone burs are hand cut by expert craftsmen in the USA. Each bur features the size stamped directly on the 3\/32\" shank, making identification quick and reliable at the bench. While HSS burs carry a higher price point than imported Tungsten Vanadium Carbon Steel burs, their superior hardness delivers a longer service life and sustained sharpness that machine-cut alternatives cannot match. These burs are the preferred choice of quality jewelers.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel construction for superior hardness and extended service life\u003c\/li\u003e\n\u003cli\u003eStays sharper longer than machine-cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eSize stamped on the 3\/32\" shank for easy, reliable identification\u003c\/li\u003e\n\u003cli\u003eInverted cone profile for precise metalworking applications\u003c\/li\u003e\n\u003cli\u003ePreferred by quality jewelers for professional results\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003e119.635\u003c\/td\u003e\n\u003ctd\u003e1.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.638\u003c\/td\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.643\u003c\/td\u003e\n\u003ctd\u003e3.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.649\u003c\/td\u003e\n\u003ctd\u003e4.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.656\u003c\/td\u003e\n\u003ctd\u003e6.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.660\u003c\/td\u003e\n\u003ctd\u003e8.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Spearhead","offers":[{"title":"1.70mm","offer_id":43696775332054,"sku":"119.635","price":5.35,"currency_code":"USD","in_stock":true},{"title":"2.30mm","offer_id":43696775397590,"sku":"119.638","price":5.35,"currency_code":"USD","in_stock":false},{"title":"3.30mm","offer_id":43696775430358,"sku":"119.643","price":8.25,"currency_code":"USD","in_stock":true},{"title":"4.70mm","offer_id":43696775463126,"sku":"119.649","price":9.3,"currency_code":"USD","in_stock":false},{"title":"6.30mm","offer_id":43696775495894,"sku":"119.656","price":9.75,"currency_code":"USD","in_stock":true},{"title":"8.00mm","offer_id":43696775528662,"sku":"119.660","price":9.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/high-speed-steel-inverted-cone-burs-1-70mm-8-00mm-otto-frei.jpg?v=1719955420"},{"product_id":"spearhead-hss-setting-burs-0-90mm-11-10mm","title":"Spearhead High Speed Steel (HSS) Setting Burs 0.90 mm to 11.10 mm","description":"\u003cp\u003eSetting burs cut clean, uniform seats that hold a stone securely. Spearhead High Speed Steel (HSS) setting burs are precision cut in the United States using modern equipment operated by highly trained professionals. Sold exclusively by Otto Frei, Spearhead HSS burs are easily identified by their size imprinted on the shank and the characteristic slanted flute angle of a setting bur. Uniform, consistent geometries produce clean, precise cuts seat after seat. Professional stone setters choose HSS burs for their significantly longer service life compared to Tungsten Vanadium Steel burs, which makes them a more economical choice over time. Available in 34 sizes from 0.90 mm to 11.10 mm, sold individually.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for extended tool life\u003c\/li\u003e\n\u003cli\u003ePrecision cut in the United States on modern equipment\u003c\/li\u003e\n\u003cli\u003eSize imprinted on the shank for quick, reliable identification\u003c\/li\u003e\n\u003cli\u003eSlanted flute angle engineered specifically for stone setting\u003c\/li\u003e\n\u003cli\u003eUniform, consistent geometries for clean, repeatable cuts\u003c\/li\u003e\n\u003cli\u003eOutlasts Tungsten Vanadium Steel burs for greater economy\u003c\/li\u003e\n\u003cli\u003eAvailable in 34 individual sizes from 0.90 mm to 11.10 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eBur Size (mm)\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.671\u003c\/td\u003e\n\u003ctd\u003e0.90 mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.672\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.673\u003c\/td\u003e\n\u003ctd\u003e1.30 mm\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.674\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.675\u003c\/td\u003e\n\u003ctd\u003e1.70 mm\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.676\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.677\u003c\/td\u003e\n\u003ctd\u003e2.10 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mm\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.684\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.685\u003c\/td\u003e\n\u003ctd\u003e3.80 mm\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.686\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.687\u003c\/td\u003e\n\u003ctd\u003e4.30 mm\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.688\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.689\u003c\/td\u003e\n\u003ctd\u003e4.70 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mm\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.702\u003c\/td\u003e\n\u003ctd\u003e9.60 mm\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.703\u003c\/td\u003e\n\u003ctd\u003e10.40 mm\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.704\u003c\/td\u003e\n\u003ctd\u003e11.10 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Speed Steel Slim Reamer Burs 2.50mm-11.10mm","description":"\u003cp\u003eSlim reamer burs open and true a hole to size with precise, controlled cutting. Spearhead High Speed Steel (HSS) slim reamer burs are hand cut by expert craftsmen in the USA, delivering the sharp edges and extended service life that quality jewelers demand. Each bur is easy to identify by the size stamped directly on the 3\/32\" shank, a hallmark of the Spearhead brand. While HSS burs carry a higher price point than imported Tungsten Vanadium Carbon Steel burs, their superior hardness means they stay sharper longer and outlast machine-cut alternatives. For jewelers who refuse to compromise on precision and durability, these slim reamer burs are the professional standard.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel (HSS) construction for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eOutlasts machine-cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eSize stamped on the 3\/32\" shank for quick, reliable identification\u003c\/li\u003e\n\u003cli\u003eSlim reamer profile for precise, controlled reaming\u003c\/li\u003e\n\u003cli\u003eAvailable in six sizes ranging from 2.50mm–11.10mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003e119.709\u003c\/td\u003e\n\u003ctd\u003e2.50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.713\u003c\/td\u003e\n\u003ctd\u003e3.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.719\u003c\/td\u003e\n\u003ctd\u003e4.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.726\u003c\/td\u003e\n\u003ctd\u003e6.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.730\u003c\/td\u003e\n\u003ctd\u003e8.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.734\u003c\/td\u003e\n\u003ctd\u003e11.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBurs are sold individually, so each order covers one bur in the size selected.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spearhead","offers":[{"title":"2.50mm","offer_id":43696792207574,"sku":"119.709","price":6.8,"currency_code":"USD","in_stock":true},{"title":"3.30mm","offer_id":43696792240342,"sku":"119.713","price":8.25,"currency_code":"USD","in_stock":true},{"title":"4.70mm","offer_id":43696792273110,"sku":"119.719","price":9.3,"currency_code":"USD","in_stock":true},{"title":"6.30mm","offer_id":43696792305878,"sku":"119.726","price":9.75,"currency_code":"USD","in_stock":true},{"title":"8.00mm","offer_id":43696792338646,"sku":"119.730","price":9.75,"currency_code":"USD","in_stock":false},{"title":"11.10mm","offer_id":43696792371414,"sku":"119.734","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/high-speed-steel-slim-reamer-burs-2-50mm-11-10mm-otto-frei-1.jpg?v=1719955417"},{"product_id":"spearhead-hss-square-edge-wheel-burs-1-70mm-11-00mm","title":"High Speed Steel Square Edge Wheel Burs 1.70mm-11.00mm","description":"\u003cp\u003eSquare edge wheel burs cut and finish metal with a flat, defined edge for precise bench work. Spearhead High Speed Steel (HSS) square edge wheel burs are hand cut by expert craftsmen in the USA. Each bur is stamped with its size directly on the 3\/32\" shank, making identification quick and reliable at the bench. Compared to imported Tungsten Vanadium Carbon Steel burs, these HSS burs offer superior hardness, longer-lasting sharpness, and extended service life, making them the preferred choice of quality jewelers everywhere.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel construction for superior hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eSize stamped directly on the 3\/32\" shank for easy identification\u003c\/li\u003e\n\u003cli\u003eLonger service life compared to machine-cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eSquare edge wheel profile for precise metalworking applications\u003c\/li\u003e\n\u003cli\u003ePreferred by quality jewelers for demanding bench work\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003e119.745\u003c\/td\u003e\n\u003ctd\u003e1.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.748\u003c\/td\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.753\u003c\/td\u003e\n\u003ctd\u003e3.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.756\u003c\/td\u003e\n\u003ctd\u003e4.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.759\u003c\/td\u003e\n\u003ctd\u003e4.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.766\u003c\/td\u003e\n\u003ctd\u003e6.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.770\u003c\/td\u003e\n\u003ctd\u003e8.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.774\u003c\/td\u003e\n\u003ctd\u003e11.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Spearhead","offers":[{"title":"1.70mm","offer_id":43696792633558,"sku":"119.745","price":5.35,"currency_code":"USD","in_stock":true},{"title":"2.30mm","offer_id":43696792666326,"sku":"119.748","price":5.35,"currency_code":"USD","in_stock":false},{"title":"3.30mm","offer_id":43696792699094,"sku":"119.753","price":8.25,"currency_code":"USD","in_stock":false},{"title":"4.00mm","offer_id":43696792731862,"sku":"119.756","price":8.25,"currency_code":"USD","in_stock":false},{"title":"4.70mm","offer_id":43696792764630,"sku":"119.759","price":9.3,"currency_code":"USD","in_stock":false},{"title":"6.30mm","offer_id":43696792797398,"sku":"119.766","price":9.75,"currency_code":"USD","in_stock":false},{"title":"8.00mm","offer_id":43696792830166,"sku":"119.770","price":9.75,"currency_code":"USD","in_stock":false},{"title":"11.00mm","offer_id":43696792862934,"sku":"119.774","price":12.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/high-speed-steel-square-edge-wheel-burs-1-70mm-11-00mm-otto-frei.jpg?v=1719955413"},{"product_id":"spearhead-hss-round-edge-wheel-burs-1-70mm-11-10mm-3-32-shank","title":"High Speed Steel Round Edge Wheel Burs 1.70mm-11.10mm","description":"\u003cp\u003eRound edge wheel burs handle demanding cutting and finishing work at the bench. Spearhead High Speed Steel (HSS) round edge wheel burs are hand cut by expert craftsmen in the USA. Each bur features the size stamped directly on the 3\/32\" shank, making identification quick and reliable at the bench. Compared to imported Tungsten Vanadium Carbon Steel burs, these HSS burs maintain a sharper edge longer and deliver superior service life, a clear advantage over machine-cut alternatives. Quality jewelers consistently prefer HSS burs for demanding cutting and finishing work.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel construction for longer-lasting sharpness\u003c\/li\u003e\n\u003cli\u003eOutperforms imported Tungsten Vanadium Carbon Steel burs in edge retention and service life\u003c\/li\u003e\n\u003cli\u003eSize stamped on the 3\/32\" shank for easy identification\u003c\/li\u003e\n\u003cli\u003eRound edge wheel bur profile\u003c\/li\u003e\n\u003cli\u003ePreferred by quality jewelers for precision work\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003e119.775\u003c\/td\u003e\n\u003ctd\u003e1.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.778\u003c\/td\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.783\u003c\/td\u003e\n\u003ctd\u003e3.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.786\u003c\/td\u003e\n\u003ctd\u003e4.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.789\u003c\/td\u003e\n\u003ctd\u003e4.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.796\u003c\/td\u003e\n\u003ctd\u003e6.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.800\u003c\/td\u003e\n\u003ctd\u003e8.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.804\u003c\/td\u003e\n\u003ctd\u003e11.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Spearhead","offers":[{"title":"1.70mm","offer_id":43696793092310,"sku":"119.775","price":5.35,"currency_code":"USD","in_stock":true},{"title":"2.30mm","offer_id":43696793125078,"sku":"119.778","price":5.35,"currency_code":"USD","in_stock":true},{"title":"3.30mm","offer_id":43696793157846,"sku":"119.783","price":8.25,"currency_code":"USD","in_stock":true},{"title":"4.00mm","offer_id":43696793190614,"sku":"119.786","price":8.25,"currency_code":"USD","in_stock":false},{"title":"4.70mm","offer_id":43696793223382,"sku":"119.789","price":9.3,"currency_code":"USD","in_stock":false},{"title":"6.30mm","offer_id":43696793256150,"sku":"119.796","price":9.75,"currency_code":"USD","in_stock":false},{"title":"8.00mm","offer_id":43696793288918,"sku":"119.800","price":9.75,"currency_code":"USD","in_stock":true},{"title":"11.10mm","offer_id":43696793321686,"sku":"119.804","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/high-speed-steel-round-edge-wheel-burs-1-70mm-11-10mm-otto-frei.jpg?v=1719955414"},{"product_id":"spearhead-hss-tree-burs-1-70mm-8-00mm-3-32-shank","title":"High Speed Steel Tree Burs 1.70mm-8.00mm","description":"\u003cp\u003eTree burs handle a variety of jewelry fabrication and setting tasks at the bench. Spearhead High Speed Steel (HSS) tree burs are hand cut by expert craftsmen in the USA, delivering the precision and longevity that quality jewelers demand. Each bur is size stamped directly on its 3\/32\" shank, making identification quick and reliable at the bench. While HSS burs carry a higher price point than imported Tungsten Vanadium Carbon Steel burs, their superior hardness means they stay sharp longer and outlast machine cut alternatives, making them a smart investment for professional work.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand cut by expert craftsmen in the USA\u003c\/li\u003e\n\u003cli\u003eHigh Speed Steel construction for superior hardness and extended cutting life\u003c\/li\u003e\n\u003cli\u003eStays sharp longer than machine cut Tungsten Vanadium Carbon Steel burs\u003c\/li\u003e\n\u003cli\u003eSize stamped on shank for easy identification\u003c\/li\u003e\n\u003cli\u003e3\/32\" shank fits standard flex shaft and rotary handpieces\u003c\/li\u003e\n\u003cli\u003eTree bur profile ideal for a variety of jewelry fabrication and setting tasks\u003c\/li\u003e\n\u003cli\u003ePreferred by quality jewelers worldwide\u003c\/li\u003e\n\u003c\/ul\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\u003e119.935\u003c\/td\u003e\n\u003ctd\u003e1.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.938\u003c\/td\u003e\n\u003ctd\u003e2.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.943\u003c\/td\u003e\n\u003ctd\u003e3.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.949\u003c\/td\u003e\n\u003ctd\u003e4.70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.956\u003c\/td\u003e\n\u003ctd\u003e6.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.960\u003c\/td\u003e\n\u003ctd\u003e8.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSold individually. Each order supplies one HSS tree bur in the size selected above.\u003c\/li\u003e\n\u003cli\u003eThe size is stamped on the shank of every bur, so sizes stay identifiable once they are in the bur box.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spearhead","offers":[{"title":"1.70mm","offer_id":43696833167574,"sku":"119.935","price":5.35,"currency_code":"USD","in_stock":true},{"title":"2.30mm","offer_id":43696833200342,"sku":"119.938","price":5.35,"currency_code":"USD","in_stock":true},{"title":"3.30mm","offer_id":43696833233110,"sku":"119.943","price":8.25,"currency_code":"USD","in_stock":true},{"title":"4.70mm","offer_id":43696833265878,"sku":"119.949","price":9.3,"currency_code":"USD","in_stock":true},{"title":"6.30mm","offer_id":43696833298646,"sku":"119.956","price":9.75,"currency_code":"USD","in_stock":true},{"title":"8.00mm","offer_id":43696833331414,"sku":"119.960","price":9.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/high-speed-steel-tree-burs-1-70mm-8-00mm-otto-frei.jpg?v=1719955409"},{"product_id":"spearhead-hss-flame-burs-1-10-8-00mm-3-32-shank","title":"High Speed Steel Flame Burs 1.10mm-8.00mm","description":"\u003cp\u003eA flame bur handles metalsmithing and jewelry fabrication work that calls for a reliable, durable cutting edge. Spearhead High Speed Steel (HSS) flame burs are hand-cut by expert craftsmen in the USA, delivering the consistent precision and long-lasting sharpness that quality jewelers demand. They are available in 14 sizes ranging from 1.10 mm – 8.00 mm.\u003c\/p\u003e\u003cp\u003eUnlike machine-cut Tungsten Vanadium Carbon Steel burs, Spearhead HSS burs are made from harder material that holds a sharper edge longer, providing superior service life and performance. Each bur features the size stamped directly on the 3\/32\" shank for easy identification at the bench. Sold individually.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand-cut High Speed Steel construction for extended sharpness and durability\u003c\/li\u003e\n\u003cli\u003eFlame bur profile for versatile metalworking and jewelry applications\u003c\/li\u003e\n\u003cli\u003eSize stamped on the 3\/32\" shank for quick, at-a-glance identification\u003c\/li\u003e\n\u003cli\u003e14 sizes available from 1.10 mm – 8.00 mm\u003c\/li\u003e\n\u003cli\u003ePreferred by quality jewelers for superior performance over Tungsten Vanadium burs\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eMetric Size\u003c\/th\u003e\n\u003cth\u003eBur No.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.962\u003c\/td\u003e\n\u003ctd\u003e1.10 mm\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.964\u003c\/td\u003e\n\u003ctd\u003e1.50 mm\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.966\u003c\/td\u003e\n\u003ctd\u003e1.90 mm\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.968\u003c\/td\u003e\n\u003ctd\u003e2.30 mm\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.970\u003c\/td\u003e\n\u003ctd\u003e2.70 mm\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.972\u003c\/td\u003e\n\u003ctd\u003e3.10 mm\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.974\u003c\/td\u003e\n\u003ctd\u003e3.50 mm\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.976\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.978\u003c\/td\u003e\n\u003ctd\u003e4.50 mm\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.980\u003c\/td\u003e\n\u003ctd\u003e5.00 mm\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.982\u003c\/td\u003e\n\u003ctd\u003e5.20 mm\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.984\u003c\/td\u003e\n\u003ctd\u003e5.60 mm\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.986\u003c\/td\u003e\n\u003ctd\u003e6.30 mm\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e119.990\u003c\/td\u003e\n\u003ctd\u003e8.00 mm\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Spearhead","offers":[{"title":"1.10mm","offer_id":43696833462486,"sku":"119.962","price":5.35,"currency_code":"USD","in_stock":true},{"title":"1.50mm","offer_id":43696833495254,"sku":"119.964","price":5.35,"currency_code":"USD","in_stock":true},{"title":"1.90mm","offer_id":43696833528022,"sku":"119.966","price":5.35,"currency_code":"USD","in_stock":true},{"title":"2.30mm","offer_id":43696833560790,"sku":"119.968","price":5.35,"currency_code":"USD","in_stock":true},{"title":"2.70mm","offer_id":43696833593558,"sku":"119.970","price":6.8,"currency_code":"USD","in_stock":true},{"title":"3.10mm","offer_id":43696833626326,"sku":"119.972","price":6.8,"currency_code":"USD","in_stock":true},{"title":"3.50mm","offer_id":43696833659094,"sku":"119.974","price":8.25,"currency_code":"USD","in_stock":true},{"title":"4.00mm","offer_id":43696833691862,"sku":"119.976","price":8.25,"currency_code":"USD","in_stock":true},{"title":"4.50mm","offer_id":43696833724630,"sku":"119.978","price":8.25,"currency_code":"USD","in_stock":true},{"title":"5.00mm","offer_id":43696833757398,"sku":"119.980","price":9.3,"currency_code":"USD","in_stock":true},{"title":"5.20mm","offer_id":43696833790166,"sku":"119.982","price":9.3,"currency_code":"USD","in_stock":true},{"title":"5.60mm","offer_id":43696833822934,"sku":"119.984","price":9.3,"currency_code":"USD","in_stock":true},{"title":"6.30mm","offer_id":43696833855702,"sku":"119.986","price":9.75,"currency_code":"USD","in_stock":true},{"title":"8.00mm","offer_id":43696833888470,"sku":"119.990","price":9.75,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/high-speed-steel-flame-burs-1-10mm-8-00mm-otto-frei.jpg?v=1719955409"},{"product_id":"carbide-inside-ring-bur-half-x-1in-quarter-shank","title":"Carbide Inside Ring Bur 1\/2\" x 1\" With 1\/4\" Shank","description":"\u003cp\u003eThis bur trues and trims the inside of ring shanks, taking down solder seams and sizing stock in a single pass of the handpiece. Spearhead carbide inside ring burs carry a massive \u003cstrong\u003e1\/4\" shank diameter\u003c\/strong\u003e that prevents the bending common to skinny-shank cylinder burs. The trade-off is that they require a Jacobs chuck-style handpiece or a collet-style handpiece that accepts 1\/4\" shanks, and the payoff is a bur that stays true and performs reliably under demanding inside-ring work.\u003c\/p\u003e\n\u003cp\u003eAvailable in two cuts to suit finishing and detail work at different stages, these burs measure \u003cstrong\u003e1\/2\" x 1\"\u003c\/strong\u003e in head dimensions and are made from carbide for lasting durability and cutting performance.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4\" shank diameter\u003c\/strong\u003e resists bending during use\u003c\/li\u003e\n\u003cli\u003eCarbide construction for long-lasting cutting performance\u003c\/li\u003e\n\u003cli\u003eLarge 1\/2\" x 1\" bur head size suited for inside ring work\u003c\/li\u003e\n\u003cli\u003eAvailable in Fine and X-Fine cuts for versatile finishing applications\u003c\/li\u003e\n\u003cli\u003eCompatible with Jacobs chuck-style or collet-style handpieces that accept 1\/4\" shanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eCut\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e120.290\u003c\/td\u003e\n\u003ctd\u003eFine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e120.291\u003c\/td\u003e\n\u003ctd\u003eX-Fine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThese burs require a handpiece with a Jacobs chuck or a collet capable of accepting a \u003cstrong\u003e1\/4\" shank\u003c\/strong\u003e. Standard flex-shaft handpieces with smaller collets will not accommodate this shank size.\u003c\/p\u003e","brand":"Spearhead","offers":[{"title":"Fine","offer_id":43700344258774,"sku":"120.290","price":34.35,"currency_code":"USD","in_stock":false},{"title":"X-Fine","offer_id":43700344291542,"sku":"120.291","price":29.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/carbide-inside-ring-bur-12-x-1-with-14-shank-otto-frei.jpg?v=1719955351"},{"product_id":"carbide-inside-ring-bur-18-shank-fine-cut","title":"Carbide Inside Ring Bur with 1\/8\" Shank","description":"\u003cp\u003eThis carbide inside ring bur is designed for shaping, smoothing, and refining the interior of rings with controlled precision. The fine cut teeth provide efficient material removal while leaving a clean surface finish inside the shank.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for working on the inside of ring shanks\u003c\/li\u003e\n\u003cli\u003eFine cut teeth for smooth, controlled material removal\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for durability and long service life\u003c\/li\u003e\n\u003cli\u003e1\/8\" shank for use with flex shafts and micromotors that accept 1\/8\" tools\u003c\/li\u003e\n\u003cli\u003eAvailable in two head size options\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut Type\u003c\/th\u003e\n\u003ctd\u003eFine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003ctd\u003e1\/8 in. (3.18 mm)\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\u003eHead Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e120.292\u003c\/td\u003e\n\u003ctd\u003e3\/8 in. × 3\/4 in. (9.53 mm × 19.1 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e120.293\u003c\/td\u003e\n\u003ctd\u003e1\/4 in. × 5\/8 in. (6.35 mm × 15.9 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Spearhead","offers":[{"title":"3\/8\" x 3\/4\"","offer_id":47551730122966,"sku":"120.292","price":25.8,"currency_code":"USD","in_stock":false},{"title":"1\/4\" x 5\/8\"","offer_id":47551730155734,"sku":"120.293","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/carbide-inside-ring-bur-with-18-shank-otto-frei.jpg?v=1719955348"}],"url":"https:\/\/www.ottofrei.com\/ja\/collections\/spearhead-hss-burs-jewelry.oembed","provider":"Otto Frei","version":"1.0","type":"link"}