Spearhead High Speed Steel 90 Degree Bearing Bur Kit of 14 Pieces
Single unit weight: -- lbs / -- kg
Single unit weight: -- lbs / -- kg
Spearhead 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.
This 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.
| Bur Type | 90 Degree Bearing (Setting) Bur |
|---|---|
| Material | High Speed Steel (HSS) |
| Shank Size | 3/32" |
| Manufacture | Hand cut in the USA |
| Kit Quantity | 14 pieces |
| Size Range | 0.90 mm – 7.2 mm (No. 1 – No. 28) |
| Part # | Size |
|---|---|
| 119.421 | 0.9 mm |
| 119.423 | 1.3 mm |
| 119.425 | 1.7 mm |
| 119.427 | 2.1 mm |
| 119.429 | 2.5 mm |
| 119.431 | 2.9 mm |
| 119.433 | 3.3 mm |
| 119.435 | 3.8 mm |
| 119.437 | 4.3 mm |
| 119.439 | 4.7 mm |
| 119.442 | 5.2 mm |
| 119.444 | 5.6 mm |
| 119.446 | 6.3 mm |
| 119.448 | 7.2 mm |
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