Large diameter ball burs shape, hollow, and enlarge round seats in precious metals, performing the heavy stock removal work smaller burs cannot reach. These Swiss Fig. 1 ball burs are precision-ground for smooth, balanced cutting, so they deliver clean spherical contours with confident control at the bench. Twelve sizes run from 4.00 mm (0.157 in) to 8.50 mm (0.335 in), sold individually.
Features
- Fig. 1 ball (round) bur profile for shaping and seat cutting
- Manufactured from tungsten vanadium steel for strength and edge retention
- Precision-made to tight tolerances for consistent performance
- Large diameter range ideal for bold settings and heavy stock removal
- Preferred by many jewelers for everyday reliability
- Sold individually
Available Options
| Part # |
Bur Size |
| 118.206 |
4.00 mm (0.157 in) |
| 118.207 |
4.20 mm (0.165 in) |
| 118.208 |
4.50 mm (0.177 in) |
| 118.209 |
4.70 mm (0.185 in) |
| 118.210 |
5.00 mm (0.197 in) |
| 118.212 |
5.50 mm (0.217 in) |
| 118.214 |
6.00 mm (0.236 in) |
| 118.216 |
6.50 mm (0.256 in) |
| 118.218 |
7.00 mm (0.276 in) |
| 118.220 |
7.50 mm (0.295 in) |
| 118.222 |
8.00 mm (0.315 in) |
| 118.224 |
8.50 mm (0.335 in) |