Milling cutters are essential tools in machining and manufacturing, designed for precision cutting, shaping, and finishing of materials like metal, wood, and composites. These rotary cutting tools come in various types, including end mills, face mills, ball nose cutters, and slot drills, each optimized for specific applications such as contouring, slotting, or threading. High-performance milling cutters often feature advanced coatings (e.g., TiN, TiAlN) for wear resistance and carbide substrates for durability. Common variations include indexable insert cutters for cost efficiency and solid carbide cutters for intricate geometries. Key specifications include flute count, helix angle, and cutting diameter, catering to industries like aerospace, automotive, and CNC machining.