... TiALN Coated 3) Grain Materi Tungsten Carbide Ball Nose Milling Cutters1 Suitable for Copper,Cast Iron,Carbon steel, ... more production timeTungsten Carbide Ball Nose Milling CutterTungsten Carbide Ball Nose Milling Cutters1 Suitable for Copper,Cast Iron, ... for high speed cutting of CNC milling machine.also can inclease the smoothness,reduce the rubbing coefficient, and improve the lathe Tungsten Carbide ...