... HRC45 TypeMat.D[mm]d[mm]L[mm]Flute no.A1-50Carbide41502, 3, 4A1.5-50Carbide41.5502, 3, 4A2-50Carbide42502, 3, 4A2 ... .5-50Carbide42.5502, 3, 4A3-50Carbide43502, 3, 4A4-50Carbide44502, 3, 4A4- ... 3.Coating:No 4.Applications:Plastics,Aluminum Alloys,Copper Alloys 5.Helix Angle:45 degree 6.Coablt Content:12% 7.Diam ...