The Micro 100 Ball End Mill is a 2-flute carbide end mill with a ball end. It has a 1/4" shank diameter and is available in diameters from 1/8" to 1/2". The overall length ranges from 1-1/2" to 3-1/2" depending on the diameter. It can machine a variety of materials including steel, stainless steel, cast iron, aluminum, copper, brass, bronze, plastic, and graphite. It is designed for 3D contouring and profiling operations. The ball end geometry allows for milling of 3D contoured shapes.