- Features
| F56 Geometry - The universal one |
| For medium machining conditions |
| Universal application for most materials |
| +/-0.013 mm cutting edge tolerance |
| 0.05 to 0.15 mm inscribed circle tolerance |
| +/-0.025 mm thickness tolerance |
| 1.6 mm width face chamfer |
| 2 cutting edges |
| 40 to 60 deg double countersink hole |
| 90 deg approach |