The 3215 General Purpose end mill has 2-flutes and was designed for use in titanium, super alloys, stainless steels, steels, cast iron, brass & copper, and low si aluminum. It is offered in a variety of configurations and is available with single-end and double-end designs. The 3215 General Purpose end mill is stocked uncoated and with TiAlN, TiCN, and TiN coatings.