Machinist Job Description

A machinist turns bar stock, plate, forgings and castings into finished parts by removing metal on a machine tool. The drawing sets the target: diameters, hole positions, thread callouts, surface finish and the tolerance on each feature. The machinist decides how to get there, choosing which machine to use, how to hold the part, which cutter goes in first and how fast it should run. BLS describes the job as setting up and operating both computer-controlled and mechanically controlled equipment to produce precision metal parts, instruments and tools.

Manual and CNC in the same shop. The general machinist is the person who can walk from an engine lathe to a vertical machining center and be useful at both. BLS notes that many machinists must be able to use both manual and CNC machinery. On a manual lathe or Bridgeport-style knee mill, the operator controls every pass by handwheel and power feed, reading the dials and checking size as the cut progresses. On a CNC machine, the program controls the cutting path, speed and feed, and the machinist's job shifts to setup, offsets, first-part proving and watching for trouble once the cycle starts.

Small batches and one-off parts. BLS points out that while some machinists produce large quantities of one part, precision machinists often produce small batches or single items. The examples it gives range from steel bolts to titanium bone screws and automobile pistons. In a contract machine shop, that can mean a dozen different jobs in a week, each with its own material, fixture and inspection plan. In a production plant, it can mean holding one part number in tolerance across thousands of cycles.

Repair work. Some machinists work in a plant's maintenance department rather than on a production line. When an industrial machinery mechanic finds a broken shaft, gear or bushing, BLS notes, the machinist works from engineering drawings to make the replacement. Without a drawing, the job becomes reverse engineering: measuring the worn part, deciding what the original size must have been, and picking a material that will hold up.

How precise. BLS says the work can demand accuracy to within .0001 of an inch. Holding that means controlling heat, tool wear, machine backlash and the way a part springs after it comes out of the vise. A good machinist checks critical features during the run, not just at the end, using micrometers, bore gauges, indicators and height gauges on a surface plate.

Beyond the cutter. BLS also notes that some manufacturing processes cut with lasers, water jets and electrified wires, and that machinists have to learn new machining properties and techniques as new machine tools arrive. O*NET's occupation profile adds that machinists may fabricate and modify parts to make or repair machine tools, applying knowledge of mechanics, mathematics, metal properties and layout.

Who they work with. The machinist sits between engineering, which defines the part, and quality, which signs it off. A CNC programmer may supply the program, a lead or supervisor sets priorities, and an inspector or quality technician checks first articles. In smaller shops, one machinist may do all of it.

Education. BLS says machinists typically need a high school diploma to enter the occupation. O*NET's survey of workers shows the spread: 36 percent of respondents said a new hire needs a high school diploma or equivalent, 33 percent said a post-secondary certificate, and 17 percent said some college with no degree. Community and technical college machining programs teach print reading, shop math, manual machining, CNC setup and metrology. In high school, algebra, trigonometry and drafting are the classes that carry straight onto the shop floor.

On-the-job training and apprenticeship. BLS says machinists typically gain competency through on-the-job training or an apprenticeship, and that trainees often begin as machine operators and take on harder assignments over time. Apprenticeships are typically sponsored by an employer and combine paid work with related technical instruction, which BLS says may be provided in cooperation with local community colleges. O*NET lists apprenticeship titles for the occupation that are approved by the U.S. Department of Labor for use in a Registered Apprenticeship Program, including Machinist, Maintenance Machinist, Instrument Maker and Machinist, Outside (Ship).

Program lengths vary by sponsor. Washington's rules, as quoted in the IAM/Boeing Joint Apprenticeship Committee standards, describe the industry standard for on-the-job learning as at least two thousand hours under a time-based approach, with competency-based and hybrid options also allowed. Those same standards require apprentices to be paid on a progressively increasing wage scale tied to the journey-level wage. As a rough guide, a full machinist apprenticeship runs about four years, and a machinist with five or more years across manual and CNC work can usually handle setups, first articles and tight-tolerance jobs without close supervision.

Certifications. Credentials a machinist would actually pursue:

• NIMS Machining Level I credentials, awarded by the National Institute for Metalworking Skills
• OSHA 10-Hour General Industry card, issued through OSHA's Outreach Training Program
• Autodesk Certified Professional in CAM for 3-Axis Milling, awarded by Autodesk, for machinists moving toward programming

Software and tools. O*NET tags Autodesk AutoCAD and Dassault Systemes SolidWorks as hot technologies for the occupation and lists Mastercam as in demand. On the floor, a machinist should know a common CNC control interface, G-code and M-code structure, and how to read geometric dimensioning and tolerancing callouts on a print.

Personal qualities. BLS lists analytical skills, manual dexterity, mechanical skills, physical stamina and technical skills. The stamina part is real: the job means standing for long stretches, lifting stock and fixtures, and repeating careful motions while staying focused on a dial or a readout.

The 2025-35 projection. BLS projects machinist employment to rise from 288,300 in 2025 to 291,200 in 2035, a gain of 3,000 jobs, or 1 percent. O*NET classifies that as slower than average (1% to 2%) and projects about 26,100 openings a year on average over the decade, counting both growth and replacement of workers who leave. That openings figure is the one that matters to a job seeker: a flat headcount still leaves room for new machinists as experienced ones retire or move into other roles.

Why the headcount barely moves. BLS says machinists will still be needed to set up, monitor and maintain CNC machine tools, autoloaders and high-speed machining, but that improvements in those technologies increase each worker's efficiency. Setup, monitoring and maintenance of that equipment are the tasks BLS names for machinists.

Machine tool orders set a monthly record in September 2026. New orders of metal-cutting and metal-forming machinery reached $1.007 billion in September 2026, a new monthly record in the U.S. Manufacturing Technology Orders series run by AMT, the Association for Manufacturing Technology, according to American Machinist. The September total included orders taken at IMTS 2026, and the 3,471 machines ordered were the most for any month since September 2014. Orders from contract machine shops, also called job shops, set a new monthly record, 25 percent ahead of August 2026. AMT describes the report as an index to future manufacturing activity, since shops buy machines to support production they expect. For machinists, new machines on the floor mean setups to learn, programs to prove and capacity that needs skilled people to run it.

Where the pay goes up. BLS industry estimates for May 2025 show how much setting matters. Machinists in machine shops had a median annual wage of $56,640, while those in aerospace product and parts manufacturing had a median of $64,140 and a 90th percentile of $95,330. Machinists in federal, state and local government had a median of $80,270. Machinists employed through employment services firms, the staffing and temp agencies, had a median of $39,830.

Safety stays on the inspection list. Two standards that govern daily machine shop work appear on OSHA's preliminary list of the 10 most frequently cited standards for fiscal year 2026 (Oct. 1, 2025, to Aug. 31, 2026): machine guarding for general industry (29 CFR 1910.212) and control of hazardous energy, or lockout/tagout (29 CFR 1910.147). The list covers federal OSHA inspections across all industries, but a machinist who reaches past a guard or clears a jam without locking out is exactly the case those rules address.

Skills for the next five years. A June 2026 NIST report on the Manufacturing USA occupation framework counted 16 machine operator and machinist roles among 132 occupations it identified as most vital to advanced manufacturing from 2026 through 2030. The report also describes America's Cutting Edge, a program developed by the Institute for Advanced Composites Manufacturing Innovation with support from the U.S. Department of War, which offers no-cost online and in-person training as a pipeline into machinist jobs and apprenticeships.

Career paths. BLS notes that some machinists become tool and die makers, an occupation with a May 2025 median annual wage of $64,050. Others move into CNC programming, quality inspection, manufacturing engineering support or shop supervision, each building on the same print-reading, setup and measurement base.

Dear Hiring Manager,

I am applying for the Machinist opening at Ridgeline Precision Components. For the past six years I have worked at a contract machine shop outside Dayton, splitting my time between a manual engine lathe, a knee mill and two vertical machining centers. That mix is what drew me to your posting, because your shop runs prototype and short-run work where a machinist has to switch between manual and CNC setups several times a week.

On the manual side, I turn shafts, bushings and threaded fittings from 4140, 304 stainless and 6061 aluminum, and I hold bearing fits by feel and by micrometer. On the CNC side, I set work and tool offsets, edit programs at the control, and prove out new jobs before handing them to the second shift. Last year I rebuilt our fixture for a recurring valve body job, which cut the setup from three operations to two and let us run the part on one machine instead of two.

I also handle much of our repair work. When the maintenance team brings in a cracked gear or a worn spindle sleeve without a drawing, I measure the sample, sketch the part, and machine a replacement, usually the same day. That work taught me to think about how a part fails, not only how it is made.

I keep my own inspection records, follow lockout steps before every tool change in the work envelope, and train our newer operators on indicating and reading a micrometer. I hold NIMS credentials in measurement and CNC milling and am working toward the turning credential now.

I would welcome the chance to talk about how I could support your prototype cell. Thank you for your time and consideration.

Sincerely, Daniel Ortega