machinist

A machinist is a tradesperson who fabricates and repairs metal parts by operating machine tools such as lathes, milling machines, grinders, and drilling machines to produce precise components. Modern machinists often work with computer numerical control (CNC) machines to program and run complex parts, as well as with conventional manual machines.

Duties include interpreting blueprints, schematics, and specifications; selecting cutting tools and fixtures; setting up and aligning machines; adjusting speeds, feeds, and depth of cut; and inspecting finished parts using precision instruments like calipers, micrometers, gauges, and coordinate measuring machines. They must maintain tolerances, document measurements, troubleshoot setup problems, and perform routine maintenance on equipment. Safety is a priority due to rotating parts, sharp tools, and material hazards.

Types of machinists include manual machinists who work primarily with conventional equipment and CNC machinists who program and operate computer-controlled machines. Tool and die makers and precision machinists may perform related tasks focusing on high-precision forms and tooling.

Education typically involves an apprenticeship, vocational or technical school, or community college programs in machining or manufacturing technology. Some employers provide on-the-job training. Certification from professional bodies such as the National Institute for Metalworking Skills (NIMS) can demonstrate competency across machinist levels and processes.

Industries employing machinists include automotive, aerospace, energy, electronics, and medical device manufacturing. Job prospects depend on manufacturing demand and the adoption of CNC technology, with emphasis on precision, efficiency, and ongoing process improvement.