The Micro 100 Square End Mill Center Cutting is a high-performance end mill designed for milling a wide range of materials. This 1/4" diameter, 2 flute end mill features a square end for milling 90 degree shoulders and slots. It has a center cutting design that allows plunge cuts into a workpiece. The end mill is made of solid carbide for durability and has a TiAIN coating to resist heat and built-up edge. It can machine at high speeds and feed rates. The end mill has a 1/4" shank diameter and is 2-1/2" overall length. It is manufactured in the USA by Micro 100 Tool Corp. This end mill is well-suited for slotting, shoulder milling, and contouring in steels, aluminum, and other materials.