The Ball End Mill from Ball is a high-speed steel end mill with a ball nose end. It has a 1/4" shank diameter, 1/2" cutting diameter, 2" overall length, and 2 flute design. This end mill is center cutting and suitable for slotting, side milling and profiling operations. It can machine steels, stainless steels, cast iron, non-ferrous metals and non-metallic materials. The ball nose geometry provides smooth milling action and accurate tracing of 3D contours.