Deep groove round nose end mill D4-R0.3-4-20-L75-6-4-HRC70
| Diameter | Comer R | Flute length | Effective length | Overall length | Shank Dia | Flules |
| D4 | R0.3 | 4 | 20 | L75 | 6 | 4 |
Advanced grinding technology to achieve ultra-high blade diameter and shank diameter accuracy,
suitable for precision molds and parts processing;
High wear-resistant coating, arc transition structure to ensure high breakage resistance, to
achieve Long-term cutting of hardened steel.
Author：LoongStar，Reprinted with attribution：https://www.linking-china.com/2011.html
