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.
Features
- High Speed Steel construction for superior hardness and extended cutting life
- Hand-cut by expert craftsmen in the USA
- Size stamped on shank for quick, accurate identification
- 3/32" shank fits standard flex shaft handpieces and rotary tools
- Cone bur profile for precise seat cutting, stone setting, and metal removal
- Available in 23 sizes from 1.10 mm to 11.10 mm
- Sold individually
Specifications
| Bur Type |
Cone |
| Material |
High Speed Steel (HSS) |
| Shank Size |
3/32" |
| Size Range |
1.10 mm – 11.10 mm |
| Number of Sizes |
23 |
| Origin |
USA |
| Sold As |
Individually |
Available Options
| 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 |
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