Solid Carbide End Mill 16mm 16R0.32x32-42x92xD16D1 (Cutting diameter): 16mm D3 (Undercut diameter): 15. 4mm L2 ( Length of cut): 32mm L3 (Length of undercut): 42mm L1 (Total length): 92mm D2 (Shank diameter): 16mm Z (Number of cutting edges): 5 R Corner radius: 0. 32 Helical pitch: 45 Optimized roughing teeth for soft cut and small chips Ascending reinforced tool core for maximum stability Variable helical pitch and unequal tooth pitch for smooth running With central inner cooling Extreme material