CNC Machining is a process used in the manufacturing sector that involves the use of computers to control machine tools. Tools that can be controlled in this manner include lathes, mills, routers and grinders. The CNC in CNC Machining stands for Computer Numerical Control.

On the surface, it may look like a normal PC controls the machines, but the computer's unique software and control console are what really sets the system apart for use in CNC machining.

A vertical machining center (VMC) is a machining center with its spindle in a vertical orientation. High-end VMCs are high-precision machines often used for tight-tolerance milling, such as fine die and mold work. Low-cost vertical machining centers are among the most basic CNC machine tools. A low-cost VMC is often a new machine shop’s first machine tool purchase.