| Total qty | Discount | Per unit | You save |
|---|---|---|---|
| 1 | – | – | |
| 2 – 3 | 5% off | ||
| 4 – 11 | 7% off | ||
| 12 + | 10% off |
Pack Size Options
These 90 degree hart burs are precision steel burs for cutting, opening, and refining angular seats and details in jewelry work. At the bench, they feel crisp and controlled where a clean edge matters. Manufactured by Busch to ultra-high precision tolerances, Fig. 156C hart burs are a reliable choice for stone setting, seat preparation, and fine detail work across a broad range of sizes.
| Part # | Bur Size (mm) | Bur Size (in.) |
|---|---|---|
| B118.498 | 0.70 mm | 0.028 in. |
| B118.499 | 0.80 mm | 0.031 in. |
| B118.500 | 0.90 mm | 0.035 in. |
| B118.501 | 1.00 mm | 0.039 in. |
| B118.502 | 1.20 mm | 0.047 in. |
| B118.503 | 1.40 mm | 0.055 in. |
| B118.504 | 1.50 mm | 0.059 in. |
| B118.505 | 1.60 mm | 0.063 in. |
| B118.506 | 1.80 mm | 0.071 in. |
| B118.506.5 | 1.90 mm | 0.075 in. |
| B118.507 | 2.10 mm | 0.083 in. |
| B118.508 | 2.30 mm | 0.091 in. |
| B118.509 | 2.50 mm | 0.098 in. |
| B118.510 | 2.70 mm | 0.106 in. |
| B118.511 | 2.90 mm | 0.114 in. |
| B118.512 | 3.10 mm | 0.122 in. |
| B118.513 | 3.30 mm | 0.130 in. |
| B118.514 | 3.50 mm | 0.138 in. |
| B118.515 | 3.70 mm | 0.146 in. |
| B118.521 | 0.95 mm | 0.037 in. |
| B118.522 | 1.10 mm | 0.043 in. |
| B118.523 | 1.30 mm | 0.051 in. |
| B118.524 | 1.42 mm | 0.056 in. |
| B118.525 | 1.58 mm | 0.062 in. |
| B118.526 | 1.70 mm | 0.067 in. |
| B118.527 | 2.00 mm | 0.079 in. |
| B118.528 | 2.20 mm | 0.087 in. |
| B118.529 | 2.40 mm | 0.094 in. |
| B118.530 | 2.60 mm | 0.102 in. |
| B118.531 | 2.80 mm | 0.110 in. |
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