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Important Notice 10/22/26: Spearhead HSS burs have ceased production. The Spearhead factory has closed and is no longer in business. As we sell out of sizes these burs will no longer be available.
A cone bur cuts seats, sets stones, and removes metal at the bench. Spearhead High Speed Steel (HSS) cone burs are hand-cut by expert craftsmen in the USA, delivering superior sharpness and extended service life compared to imported Tungsten Vanadium Carbon Steel burs. Each bur is stamped with its size directly on the 3/32" shank, making identification fast and reliable at the bench. HSS material is harder than machine-cut Tungsten Vanadium burs, allowing these cone burs to hold an edge longer and perform consistently through demanding work. Preferred by quality jewelers everywhere, Spearhead HSS burs represent a professional-grade investment in cutting performance.
| Part # | Metric Size | Bur No. |
|---|---|---|
| 119.522 | 1.10 mm | 2 |
| 119.523 | 1.30 mm | 3 |
| 119.524 | 1.50 mm | 4 |
| 119.525 | 1.70 mm | 5 |
| 119.526 | 1.90 mm | 6 |
| 119.527 | 2.10 mm | 7 |
| 119.528 | 2.30 mm | 8 |
| 119.529 | 2.50 mm | 9 |
| 119.530 | 2.70 mm | 10 |
| 119.531 | 2.90 mm | 11 |
| 119.532 | 3.10 mm | 12 |
| 119.533 | 3.30 mm | 13 |
| 119.534 | 3.50 mm | 14 |
| 119.536 | 4.00 mm | 16 |
| 119.538 | 4.50 mm | 18 |
| 119.540 | 5.00 mm | 20 |
| 119.542 | 5.20 mm | 22 |
| 119.544 | 5.60 mm | 24 |
| 119.546 | 6.30 mm | 26 |
| 119.548 | 7.20 mm | 28 |
| 119.550 | 8.00 mm | 30 |
| 119.552 | 9.60 mm | 32 |
| 119.554 | 11.10 mm | 34 |
The 3/32" shank fits standard flex shaft handpieces and rotary tools.
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