Solid Carbide End Mill 1mm 1x3-5x57xD6D1 (Cutting diameter): 1mm D3 (Undercut diameter): 0. 9mm L2 ( Length of cut): 3mm L3 (Length of undercut): 5mm L1 (Total length): 57mm D2 (Shank diameter): 6mm Z (Number of cutting edges): 2 Helical pitch: 38 Defined clearance angle for ideal stabilization with high cutting depths Special helical pitch for smooth running and soft cut Extra large chip chambers for an extreme chip volume For use in high speed milling machines For roughing and