These Kodiak Cutting Tools® micro three flute long ball nose carbide end mills feature a 30 helix angle and are center cutting for plunging, slotting and profiling.078 3 Flute Long Ball Nose Micro Carbide End Mill ALTiN Coat It is exceptional in difficultto machine materials where adhesive wear is particularly high.0005, -. This coating is extremely heatresistant and can be used with or without coolant.