Used on CNC machines for rough, deep milling of lock holes.
Positive spiral for optimal chip evacuation.
Negative spiral for optimum chip evacuation.
| D | L | L1 | L2 | Z | Z | Code No. |
| 14 | 150 | 45 | 95 | 14 | 3 | HTR10030808032 |
| 16 | 150 | 50 | 100 | 16 | 3 | HTR10031008032 |
| D | L | L1 | L2 | Z | Z | Code No. |
| 14 | 150 | 45 | 95 | 14 | 3 | HTR10030808032 |
| 16 | 150 | 50 | 100 | 16 | 3 | HTR10031008032 |