An end mill is a type of cutting tool used in milling machines to remove material from a workpiece. Unlike a drill bit, which primarily creates holes, an end mill can cut in multiple directions, making it versatile for various machining tasks. It features a cylindrical shape with cutting edges on the end and sides, allowing it to perform operations like contouring, slotting, and profiling. End mills come in various shapes and sizes, including flat, ball, and corner radius types, each suited for specific applications. They are typically made from high-speed steel or carbide, providing durability and precision. Proper selection and use of an end mill can significantly enhance the efficiency of machining processes in industries such as manufacturing and metalworking.