Solid Carbide End Mill 16mm 16R0x36-41x92xD16D1 (Cutting diameter): 16mm D3 (Undercut diameter): 15. 4mm L2 (Length of cut): 36mm L3 (Length of undercut): 41mm L1 (Total length): 92mm D2 (Shank diameter): 16mm Z (Number of cutting edges): 4 Helical Pitch: 38 Extra large chip chambers for ideal chip evacuation Unequal tooth pitch combined with variable helical pitch for smooth running Reinforced face with 2 cutting edges to the center Perfected for high radial depth of cutting and full slot