1/5/7PCS HSS Counterbore End Mill M3-M16 4 Flute Pilot Slotting Tool for Milling
Type :Counterbore End Mill. Can milling of copper, aluminum, tool steel, cast iron, etc. Used to be assembled on milling machine. 1pc HSS End Mill. 5PC : M3,M4,M5,M6,M8. 7PC: M3,M4,M5,M6,M8,M10,M12.