Cup burs round and finish prong tips during stone setting. Busch Fig. 411CCC Clean Cut Concave cup burs do that job with an open cutting geometry that clears metal shavings efficiently, leaving a smooth, rounded prong top without marring the surface.
Features
- Fig. 411CCC Clean Cut Concave cup design
- Open cutting edges allow efficient chip clearance
- Concave cup shape leaves a rounded prong top
- Manufactured from tungsten vanadium steel
- Made to ultra-high precision tolerances
- Available in sizes from 1.00 mm to 2.30 mm
- Sold in packs of six burs
Available Options
| Part # |
Bur Size |
Bur Size (in) |
| B118.421 |
1.00 mm |
0.039" |
| B118.421.5 |
1.10 mm |
0.043" |
| B118.422 |
1.20 mm |
0.047" |
| B118.422.5 |
1.30 mm |
0.051" |
| B118.423 |
1.40 mm |
0.055" |
| B118.423.5 |
1.50 mm |
0.059" |
| B118.424 |
1.60 mm |
0.063" |
| B118.425 |
1.80 mm |
0.071" |
| B118.426 |
2.10 mm |
0.083" |
| B118.426.5 |
2.30 mm |
0.091" |
