- Thread type: M
- Flank angle: 60 °
- Tool material: HSS E
- Standard: EN 22568
- Cutting direction: right-hand
Closed, pre-slit form. ≥ M3 with tapered lead chamfer on both sides for easy start to the threading action and clean swarf evacuation in the direction of cutting. 2 turns lead chamfer. Lapped and nitrided, rake approx. 15°.