End mills are cutting tools used in milling machines to remove material from a workpiece. They have a cylindrical shape with multiple cutting edges on the sides and sometimes on the end. End mills can create various shapes and features, such as slots, pockets, and contours, making them versatile for different machining tasks. These tools come in various sizes and designs, including flat end mills and ball end mills, each suited for specific applications. Made from materials like high-speed steel or carbide, end mills are essential in industries such as manufacturing and metalworking for producing precise components.