How to become a Computer Numerically Controlled Tool Operator

Official title: 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), CNC Mill Operator (Computer Numerical Control Mill Operator), CNC Operator (Computer Numerical Control Operator), CNC Set Up Operator (Computer Numerical Control Set Up Operator), Machine Operator, Machine Set Up Operator

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.

Main tasks

• 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.

How to become one

Metal and plastic workers typically need a high school diploma to enter the occupation and receive 1 year of on-the-job training. Computer numerically controlled (CNC) tool programmers typically need postsecondary training.

Typical education to start: High school diploma or equivalent

Read the full guide from the U.S. Bureau of Labor Statistics

Ways in

• Apprenticeship: Aircraft Metals Tech (Machinist/Cnc/Welder).
• Apprenticeship: Numerical Control Machnist Oper.
• Apprenticeship: Stencil Cutter.

Pay · Outlook · AI and this job

• Median pay: $50,690 a year The middle half earn $44,930 to $61,760.
• About 170,000 people work in this job now, and about 154,100 are projected by 2035. (-9.4%)
• People already use generative AI for some of this work. Microsoft Research rates its AI applicability as medium.

Related jobs

• Computer Numerically Controlled Tool Programmers
• Chemical Equipment Operators and Tenders
• Separating, Filtering, Clarifying, Precipitating, and Still Machine Setters, Operators, and Tenders
• Crushing, Grinding, and Polishing Machine Setters, Operators, and Tenders
• Grinding and Polishing Workers, Hand
• Mixing and Blending Machine Setters, Operators, and Tenders

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Questions people ask

How do I become a Computer Numerically Controlled Tool Operator?

Metal and plastic workers typically need a high school diploma to enter the occupation and receive 1 year of on-the-job training. Computer numerically controlled (CNC) tool programmers typically need postsecondary training.

How much does a Computer Numerically Controlled Tool Operator earn in the US?

Median full-time pay is $50,690 a year (U.S. Bureau of Labor Statistics). The middle half earn $44,930 to $61,760.

Is a Computer Numerically Controlled Tool Operator a growing career in the US?

Employment is projected to fall 9% by 2035, from about 170,000 to about 154,100 people (U.S. Bureau of Labor Statistics).

Do you need a degree to become a Computer Numerically Controlled Tool Operator?

Usually not. Only 9% of people in this job hold a bachelor's degree or higher. Ways in include: Aircraft Metals Tech (Machinist/Cnc/Welder).

Will AI change the work of a Computer Numerically Controlled Tool Operator?

People already use generative AI for some of this work. Microsoft Research rates its AI applicability as medium.

Sources

• Microsoft Research: Working with AI: AI applicability by occupation (2025-12-22 (built on O*NET 29.0)), CC BY 4.0, retrieved 2026-10-03
• U.S. Bureau of Labor Statistics: Employment Projections (2025-35 (released 2026-08-27)), Public domain (BLS), retrieved 2026-10-03
• U.S. Bureau of Labor Statistics: Occupational Outlook Handbook (2025-35 edition (published 2026-08-27)), Public domain (BLS); photographs excluded, retrieved 2026-10-03
• U.S. Bureau of Labor Statistics: Occupational Employment and Wage Statistics (May 2025), Public domain (BLS), retrieved 2026-10-03

Updated 2026-10-03

This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET is a trademark of USDOL/ETA.