The Micro 100 Square End Mill Carbide is a high-performance end mill for milling a variety of materials. This carbide end mill features a square end design for milling 90 degree shoulders and angles. It has 4 flutes and is uncoated with an overall length of 3". The end mill diameter is 3/8" with a shank diameter of 1/2". It can machine steels, cast iron, aluminum, copper, brass, bronze, plastics and other non-ferrous materials. The end mill provides accurate right angle shoulders in profiling, slotting and contouring applications.