Solid Carbide End Mill 5mm 5x17x54xD5D1 (Cutting diameter): 5mm L2 ( Length of cut): 17mm L1 (Total length): 54mm D2 (Shank diameter): 5mm Z (Number of cutting edges): 1 Helical pitch: 30 Defined clearance angle for ideal stabilization with high cutting depths Special helical pitch for smooth running and soft cut Balanced for maximum smoothness For use in high speed milling machines For roughing and finishing, up to 1. 5xD full slot For process reliable, helical diving and immersion *