CNC stands for Computer Numerical Control. So, CNC machining refers to any machining technique that is controlled by a computer. Computerised automation enables components to be manufactured more rapidly, correctly, precisely, and with more complicated geometries than those produced by manual machining. CNC also minimises manual machining work, which would otherwise be performed by people. While they do not manufacture each item directly, people are required to program and operate the machines, ensuring that all operations go properly.