Solid Carbide End Mill 20mm 20R0.3x60-70x125xD20D1 (Cutting diameter): 20mm D3 (Undercut diameter): 19. 4mm L2 ( Length of cut): 60mm L3 (Length of undercut): 70mm L1 (Total length): 125mm D2 (Shank diameter): 20mm Z (Number of cutting edges): 4 R Corner radius: 0. 3mm Helical pitch: 38 Unequal tooth pitch combined with variable helical pitch for smooth running Highly polished chip space for safe chip evacuation Reinforced face for process reliable, helical diving For roughing and finishing * MADE