... Alloys 3,Solid Carbide End Mills 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, 4A4-75Carbide44752, 3 ...