Production
Computer Numerically Controlled Tool Operators
Also called: CNC Gear Operator (Computer Numerical Control Gear Operator), CNC Lathe Operator (Computer Numerical Control Lathe Operator), CNC Machine Operator (Computer Numerical Control Machine Operator), CNC Machinist (Computer Numerical Control Machinist)
US median pay
$50,690
per year, 2025
Job growth 2025–35
-9.4%
declining
Openings a year (US)
12,500
170,000 employed
Typical entry education
High school diploma or equivalent
Preparation 2/5 · Some preparation
What this job is
Operate computer-controlled tools, machines, or robots to machine or process parts, tools, or other work pieces made of metal, plastic, wood, stone, or other materials. May also set up and maintain equipment.
What they do day to day
- Measure dimensions of finished workpieces to ensure conformance to specifications, using precision measuring instruments, templates, and fixtures.
- Set up and operate computer-controlled machines or robots to perform one or more machine functions on metal or plastic workpieces.
- Mount, install, align, and secure tools, attachments, fixtures, and workpieces on machines, using hand tools and precision measuring instruments.
- Review program specifications or blueprints to determine and set machine operations and sequencing, finished workpiece dimensions, or numerical control sequences.
- Stop machines to remove finished workpieces or to change tooling, setup, or workpiece placement, according to required machining sequences.
- Listen to machines during operation to detect sounds such as those made by dull cutting tools or excessive vibration, and adjust machines to compensate for problems.
- Implement changes to machine programs, and enter new specifications, using computers.
- Calculate machine speed and feed ratios and the size and position of cuts.
- Transfer commands from servers to computer numerical control (CNC) modules, using computer network links.
- Remove and replace dull cutting tools.
Skills and knowledge that matter most
Skills
- Operations Monitoring4.1/5
- Operation and Control4.1/5
- Quality Control Analysis3.4/5
- Troubleshooting3.1/5
- Complex Problem Solving3.1/5
- Time Management3.0/5
- Repairing3.0/5
- Judgment and Decision Making3.0/5
Knowledge
- Mathematics4.2/5
- Production and Processing4.0/5
- Mechanical3.8/5
- English Language3.3/5
- Engineering and Technology3.3/5
- Education and Training3.1/5
Importance rated by people working in the job (1 = not important, 5 = extremely important).
Education and preparation
Preparation level 2 of 5 — Some preparation. Usually a high school diploma; some previous work experience or training helps.
Typical entry education (BLS): High school diploma or equivalent.
Highest education of people in this job:
- High school diploma48%
- Post-secondary certificate21%
- Some college17%
Who this job suits
Mostly Realistic
Hands-on work with tools, machines, plants or animals
Conventional
Organising data, details and procedures
Based on the Holland (RIASEC) interest profile for this occupation.