The Micro 100 Ball End Mill is a 2 flute carbide end mill with a ball end. It has a 1/4" shank diameter, an overall length of 2-1/2", and a cutting diameter of 1/2". The end mill features TiAlN nano 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 graphite. The ball end geometry allows milling of 3 dimensional contoured shapes. This is a high quality carbide end mill made in the USA by Micro 100 for use in CNC milling applications.