Solid Carbide End Mill 16mm 16x80-88x134xD16D1 (Cutting diameter): 16mm D3 (Undercut diameter): 15. 5mm L2 ( Length of cut): 80mm L3 (Length of undercut): 88mm L1 (Total length): 134mm D2 (Shank diameter): 16mm Z (Number of cutting edges): 6 Helical pitch: 39 Ultra sharp and lapped cutting edges Special chip chambers designed for the evacuation of extra long and fine chips Face Finish bevel for smooth workpiece surfaces 6 cutting edges for highest feed rates For excellent surfaces and maximum