Solid Carbide End Mill 16mm 16R1x80-88x134xD16D1 (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): 7 R Corner radius: 1mm Helical pitch: 39 7 finely finished and homogenized cutting edges Special groove profile for the removal of long chips Variable helical pitch and unequal tooth pitch for maximum smoothness 7 cutting edges for highest feed rates For