1 1/2" End Mills | McMasterCarr
Use aluminumtitaniumchromiumnitride (AlTiCrN) coated inserts for demanding, highspeed jobs in hard material. They're harder and more wear resistant than uncoated carbide inserts. ... Use titaniumnitride (TiN) coated end mills for demanding, highspeed jobs in hard material as well as for longer production runs.