CNC or computer numerically controlled machining is a process where an automated machine will use pre-programmed code and specialized software controllers to carry out manufacture operations to exacting degrees of precision. Modern CNC driven machines can operate largely autonomously to repeatedly machine products to very high design tolerances.

Some common CNC manufacturing machines include; lathes, machine centers (milling machines) presses, laser cutting, welding, sewing machines, and water jet cutting machines just to name a few.