The Grainger Approved Square End Mill Single End Carbide is a milling cutter with a square end for machining flat surfaces, slots, and shoulders. It has a 1/2" shank diameter, 1-1/2" overall length, and 1/2" cutting diameter. The end mill features 4 flutes and is made of solid carbide for wear resistance and hardness. It has a TiAIN coating to reduce friction and heat. The end mill provides accurate cuts in harder steels at high speeds and feeds. It is designed for high performance in a wide range of milling applications.