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" cutting diameter, 2" overall length, and 4 flutes. The end mill is made of solid carbide for wear resistance and has TiAIN coating for heat resistance and lubricity. It can machine steels, cast iron, stainless steel, aluminum, and other non-ferrous metals at high speeds and feeds. This is a high quality carbide end mill for general purpose milling applications.