These Kodiak Cutting Tools® micro three flute long reach carbide end mills feature a 30 helix angle and are center cutting for plunging, slotting and profiling.025 3 Flute Long Reach 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.