Milling machines are essential tools in the manufacturing industry, used for shaping and cutting materials like metal and wood. They operate by rotating a cutting tool against the workpiece, allowing for precise and intricate designs. These machines can be manually operated or controlled by computer numerical control (CNC), which enhances accuracy and efficiency. There are various types of milling machines, including vertical and horizontal models, each suited for different tasks. The versatility of milling machines makes them invaluable in producing everything from small components to large industrial parts, contributing significantly to modern manufacturing processes.