- Features
| K88 Geometry - The sharp one |
| For aluminum machining |
| Low cutting force |
| Sharp cutting edges |
| +/-0.013 mm cutting edge tolerance |
| +/-0.013 mm inscribed circle tolerance |
| +/-0.025 mm thickness tolerance |
| 1.7 mm width face chamfer |
| 2 cutting edges |
| 40 to 60 deg double countersink hole |
| 90 deg approach |