The Grainger Approved Square End Mill Single End Carbide is a milling cutter with a square end for machining slots, keyways, pockets, and other 90 degree surfaces. It has a 1/2 inch shank diameter, 1 inch cutting diameter, 2 inch overall length, and 2 flutes. The end mill is made of solid carbide for wear resistance and has TiAlN coating for heat resistance and lubricity. It can machine steels, stainless steels, cast iron, aluminum, and other non-ferrous metals at high speeds and feeds. This is a high quality carbide end mill suitable for heavy duty milling applications.