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 square slots, pockets, and edges. It has four flutes and is uncoated, made of solid carbide for wear resistance and strength when milling steel, cast iron, aluminum, and other non-ferrous materials. The end mill has a 1/4 inch shank diameter and is available in multiple sizes from 1/8 inch to 5/8 inch cutting diameters. Overall, this Micro 100 end mill is a versatile, durable carbide tool well-suited for slotting, pocketing, profiling, and edge milling applications.