CNC milling is used for the precision machining of harder materials and complex parts, while CNC routing is better suited for high-speed cutting of softer materials and larger-scale projects.

CNC milling machines operate with higher precision and are ideal for creating complex, high-precision parts with intricate details, such as mechanical components, molds, and aerospace parts. CNC routers focus on softer materials like wood, plastic, and foam. They typically offer less precision than CNC mills, as they are primarily designed for high-speed, large-area cutting of flat or simple 3D shapes.