The Ball End Mill from Ball is a high-speed steel end mill with a ball nose end for milling contoured surfaces. It has a 1/4" shank diameter, 1/2" cutting diameter, 2" overall length, and 2 flute design. The end mill features TiAlN coating for increased tool life and heat resistance. It can machine a variety of materials including steel, stainless steel, cast iron, aluminum, copper, brass, bronze, plastic, and wood. The end mill is designed for high speed machining with recommended speeds up to 21,000 RPM and feed rates up to 80 IPM. It can be used for slotting, side milling and profiling operations. The end mill provides accurate results for 3D contouring applications.