CNC Machinists set up, program, and operate large, computer-controlled industrial equipment called machines tools. They use this equipment to form useful parts from metal, plastic, or other raw materials. These parts are incorporated into finished products with a wide variety of applications from jump seats on a commercial airplane to the shells of a laptop computer. CNC Machinists are responsible for safely and efficiently operating equipment, keeping equipment in proper working order, and producing parts that meet quality standards.