... Flutes Corner Radius End Mill 1) High Precision 2) non-standard sizes custom accepted 3) Good performance 45 HRC 2/4 Flutes ... End Mill 1 Suitable for Copper,Cast Iron,Carbon steel,and Mould steel processing. 2 Main features: Grain size carbon tungsten ... machine.also can inclease the smoothness,reduce the rubbing coefficient, and improve the lathe efficiency ,save more production time If you ...