Computer Numerically Controlled Tool Operators Salary

The median computer numerically controlled tool operators salary in the United States is $50,690 per year ($24.37/hour). Salaries range from $38,140 at the entry level to $73,890+ for the top 10% of earners. There are 169,450 computer numerically controlled tool operators jobs nationwide. Employment is projected to decline 10.7% through 2034.

Last updated: June 2026 Β· Source: U.S. Bureau of Labor Statistics

Median Salary
$50,690
per year
Hourly Rate
$24.37
per hour
Employment
169,450
jobs in the U.S.

Salary Distribution

10th percentile
$38,140
25th percentile
$44,930
Median
$50,690
75th percentile
$61,760
90th percentile
$73,890

Job Growth (2024-2034)

-10.7%
Decline

Annual Openings

13,500
jobs/year (growth + replacements)

Education Required

High school diploma or equivalent

Training Needed

Moderate-term on-the-job training

Computer Numerically Controlled Tool Operators Career Guide

Interview questions, resume templates, and a career ladder written specifically for computer numerically controlled tool operatorss.

Computer Numerically Controlled tool operators β€” 'CNC operators' β€” run CNC lathes, mills, machining centers, and Swiss-turn machines to produce precision metal and plastic parts from programmed G-code. Employers span aerospace precision-machining at Boeing (wing skins, fuselage, landing gear), defense-aerospace precision at Lockheed Martin and Raytheon, bearings at Timken, hydraulics and pneumatics at Parker Hannifin, industrial controls at Emerson Electric, Ford performance-parts machining at Roush Industries, and medical-device machining at Zimmer Biomet and Stryker (orthopedic implants and instruments). BLS national median is $50,690 (about $24.37/hr); p10 sits at $38,140 (~$18.34/hr) and p90 at $73,890 (~$35.52/hr), with 169,450 workers nationally. Aerospace, medical-device, and defense machining dominate the p90 tier β€” G-code fluency, tool-offset judgment, GD&T literacy, and multi-axis experience are what separate a $17/hr button-pusher from a $32/hr veteran CNC operator moving toward CNC programmer or setup machinist.

Core Skills Hiring Managers Screen For

G-code / M-code fluency & edit capability
Read a program on the machine control (Fanuc, Siemens 840D, Haas, Mazatrol) and identify moves, tool changes, coolant on/off, feed override, and rapid vs feed motions. A veteran CNC operator edits offsets and tweaks feeds/speeds live β€” not just presses cycle-start. At Roush Industries and Zimmer Biomet, offset-editing fluency is a $2-4/hr differential.
Tool offsets & wear compensation
Every cutting tool wears; the operator adjusts geometry and wear offsets to keep parts in tolerance. On a Timken bearing lathe running to Β±5 microns, offsets get tweaked 2-6 times per shift as tools wear. Missed wear compensation ships out-of-tolerance parts β€” a chargeback letter at Boeing or Lockheed Martin averages $8-40k per event.
GD&T reading & first-piece inspection
Geometric Dimensioning & Tolerancing β€” flatness, parallelism, position, profile, cylindricity, runout. Every aerospace and medical-device part has GD&T callouts far beyond the linear dimensions. First-piece inspection via calipers, micrometers, height gauges, indicator, and CMM (Coordinate Measuring Machine) with sign-off before serial production.
Fixturing & workholding
3-jaw chucks, collet closers, hydraulic and pneumatic vises, magnetic chucks, custom soft-jaws, tombstone fixtures on 4th-axis rotaries. Repeatable fixturing (Β±5-10 micron repeatability) is the difference between 96% first-pass yield and 82%. Setup machinists at Boeing and Parker Hannifin get promoted on fixturing judgment.
Tool selection & feed/speed calculation
Carbide vs HSS vs ceramic vs PCD. Coolant vs dry cut. Feed per tooth, RPM per material (aluminum ~300-500 SFM, steel ~120-250 SFM, Inconel ~60-120 SFM, titanium ~100-180 SFM). Modern CAM systems generate baseline speeds but the operator adapts to actual tool wear, chatter, and finish requirements.
In-process CMM & metrology
Layout inspection at first-piece and at defined-frequency in-process (typically every 25-100 parts on aerospace, every 500-2,000 on high-volume automotive machining). Mitutoyo, Brown & Sharpe, Zeiss CMMs. Aerospace and medical-device shops require full-dimensional layout on 100% first-piece and PPAP-level documentation for new part numbers.
Safety, PPE, and swarf/coolant handling
Safety glasses with side shields, hearing protection near screw machines, cut-resistant sleeves when handling swarf. LOTO before any tool-change requiring guarded-zone entry. Coolant-mist ventilation compliance. Loose clothing, jewelry, and hair are strictly prohibited β€” spindles at 6,000-24,000 RPM will pull anything in.
5S / lean housekeeping around machine tools
Chip management, coolant level checks, way-lube reservoir checks, spindle warmup routines. A well-run CNC cell has every tool in a marked holder, every gauge on its home hook, and every part traceability tag legible. 5S is the daily discipline that separates $32/hr operator-machinists from $19/hr button-pushers.

How to Become a Computer Numerically Controlled Tool Operators

  1. 1
    High school diploma or GED, plus math through algebra/geometry
    Required at Boeing, Lockheed Martin, Raytheon, Timken, and every aerospace/medical-device shop. Trigonometry helps β€” sine, cosine, and basic 2D geometry come up daily in feed/speed and offset calculations.
  2. 2
    Complete a CNC training program (community college or trade school, 6-24 months)
    Tulsa Welding + Machine Institute, Lincoln Tech, Universal Technical Institute (UTI), and most community colleges run 6-18 month CNC certificate programs. Programs cover G-code, setup, GD&T, CAM (Mastercam, Fusion 360), and metrology. Tuition $6-24k, often covered by employer tuition-reimbursement or state workforce grants.
  3. 3
    Apply as CNC operator (button-pusher) at a large employer or high-mix job shop
    Boeing, Lockheed Martin, Raytheon, Timken, Parker Hannifin, Emerson, Roush Industries, Zimmer Biomet, and Stryker all hire year-round. Job shops (Local machining shops of 20-200 people) provide broader die-family exposure faster. Aerospace and medical-device start at $19-24/hr; job shops start at $17-21/hr.
  4. 4
    Complete pre-employment drug screen + mechanical aptitude + hands-on test
    5-panel drug screen + Ramsay Machine Trades Aptitude test (60-90 min covering print reading, math, mechanical concepts). Aerospace and defense employers add a security background check. Some employers require a hands-on setup demonstration on a lathe or mill.
  5. 5
    Move from operator β†’ setup β†’ programmer over 4-8 years
    Operator loads parts, changes offsets, and inspects. Setup machinist owns fixturing, first-piece, and program tune-up. CNC programmer writes G-code and CAM programs offline. Each step adds $3-6/hr. Setup and programming are where the durable career money lives.
  6. 6
    Add certifications: NIMS credentials, GD&T (ASME Y14.5), Mastercam / Fusion 360, aerospace / medical-device quality (AS9100, ISO 13485)
    NIMS (National Institute for Metalworking Skills) issues 50+ credentials from Measurement/Materials/Safety to CNC Milling/Turning to CAM programming. AS9100 auditor training for aerospace, ISO 13485 for medical device β€” these open lead and quality tracks at Boeing, Lockheed, Zimmer Biomet, and Stryker.

Career Progression

CNC Operator / Button-Pusher (entry)
0-2 yrs$38k-48k ($18.35-23/hr) + shift differential
  • β€’Load raw stock, run the cycle, unload finished parts on 1-2 CNC machines
  • β€’Perform first-piece inspection under setup-machinist oversight
  • β€’Adjust wear offsets under supervision as tools wear
  • β€’Complete LOTO, coolant, and 5S checklists at start and end of shift
Next: Setup CNC Operator at 18-36 months once you own offsets and can run 3+ part families unsupervised.
Setup CNC Operator
2-5 yrs$48k-60k ($23-28.85/hr) + shift differential + OT
  • β€’Own setup β€” fixture install, tool loading, offset entry, program call-up, dry-run verification
  • β€’Perform first-piece dimensional layout; sign the first-piece card and release for serial production
  • β€’Edit G-code offsets and adjust feeds/speeds live during production
  • β€’Handle 4-8 different part families across a shift; own OEE and quality metrics on assigned machines
Next: Sr CNC Machinist or CNC Programmer at 5-9 years.
Sr CNC Machinist / Multi-Axis Specialist
5-10 yrs$60k-74k ($28.85-35.60/hr) + shift differential + OT + skill premium
  • β€’Run 4th/5th-axis machining, Swiss-turn, or multi-spindle production
  • β€’Own new-part introduction β€” CAM program tuneup, first-article inspection, PPAP submission
  • β€’Mentor operators; sign off on operator qualification cards
  • β€’Interface with engineering on design-for-manufacturability feedback
Next: CNC Programmer, Group Leader, or CMM/Quality Tech at 8-14 years.
CNC Programmer / Setup Programmer
6-14 yrs$68k-95k salary or $32-42/hr + OT
  • β€’Write and debug G-code programs offline (Mastercam, Fusion 360, NX CAM, Esprit)
  • β€’Own new-part introduction end-to-end β€” DFM feedback, program creation, first-article, PPAP
  • β€’Optimize existing programs for cycle-time reduction; typical target 8-25% cycle-time cuts
  • β€’Train operators and setup machinists on new programs
Next: CNC Manufacturing Engineer, Group Leader, or Shop Foreman at 12-18 years.
CNC Manufacturing Engineer / Shop Foreman
12+ yrs$85k-135k salaried + 12-22% bonus + LTIP at large aerospace and medical-device OEMs
  • β€’Own manufacturing engineering for a CNC cell or department (10-40 machines, 20-80 hourly staff)
  • β€’Own capex-funded machine tool purchases, cell layout, and process capability studies
  • β€’Own AS9100 (aerospace) or ISO 13485 (medical device) quality system compliance for the department
  • β€’Report to Plant Manager or Manufacturing Director; peer to Quality and Materials Managers

Interview Questions & Answers

5 free questions below. Career Kit unlocks 15 total plus resume bullets for every level.

Q1. Walk me through your first hour on a CNC machining center at start of shift.situational
Show up 10-15 min early β€” that's the culture at Boeing, Lockheed Martin, Timken, Parker Hannifin, and Roush Industries. Punch in, PPE up (safety glasses with side shields, hearing protection, cut-resistant sleeves if handling swarf), and go to the pre-shift huddle for the shift handoff. Walk to your assigned machine: check the spindle warm-up state (a cold spindle out of warmup will drift 0.01-0.03 mm), way-lube reservoir level, coolant level and concentration, air pressure to the pneumatic clamps, and the tool magazine for any missing or damaged tools. Verify the run card, program version, and offset table match the part on the machine. Do a first-piece check on the outgoing operator's last part (this is the sanity check that nothing drifted overnight). Then start the shift. First hour is where in-progress problems either get caught or inherited.
Q2. Describe a time you caught a tool wear issue before it shipped out-of-spec parts.behavioral
STAR. Situation: running a Haas VF-4 3-axis mill on a hydraulic manifold body at Parker Hannifin, tolerance Β±0.02 mm on a bore. Task: routine in-process CMM check every 50 parts. Action: parts 40-50 showed a linear drift on the bore diameter β€” from 25.010 mm nominal to 25.028 mm over 10 parts, right at the upper tolerance limit of 25.030. Trend was clear. I stopped the machine, called the setup machinist. Pulled the boring tool, inspected the insert β€” the edge had chipped micro-fracturing on the last 200 parts. Replaced the insert, applied a wear offset, ran 3 parts to verify, released for serial. Result: zero out-of-spec parts shipped, no chargeback, no batch hold. Alternative outcome: another 20-30 parts and we'd have shipped 15-25 out-of-spec bores, each a $180-350 rework or scrap and a chargeback letter to Parker's plant manager. Interviewers screen hard for the in-process CMM discipline β€” operators who skip it are the ones who ship bad parts.
Q3. How do you handle a shift where a supervisor is telling you to override a wear-offset alarm to keep the machine running?situational
Don't override it. Say directly: 'I can't override the tool-wear alarm without a setup-machinist sign-off β€” the last 40 parts will need re-inspection if we run through it.' If the supervisor pushes, complete a first-piece re-inspection immediately, note the pressure in the shift log. At aerospace and medical-device employers (Boeing, Lockheed Martin, Zimmer Biomet, Stryker), overriding a tool alarm without documentation is an AS9100 or ISO 13485 corrective-action finding β€” and it's exactly what triggers a supplier chargeback when the customer's CMM finds out-of-spec parts 3 weeks later. Every plant has a quality hotline. The 10-15 minutes of pace loss isn't worth a chargeback of $8-40k plus a personal disciplinary record.
Q4. Why CNC operator specifically vs press operator, assembly, or maintenance at the same pay?culture
Two reasons. First, the skill compounds into six-figure territory. CNC operator to setup machinist to CNC programmer takes you from $22/hr to $38-42/hr and eventually into CNC Manufacturing Engineer at $95-130k salary. That path is documented at Boeing, Lockheed Martin, Raytheon, Timken, Parker Hannifin, and Roush Industries. Second, the demand is durable and portable. Every aerospace, defense, medical-device, hydraulics, and automotive-performance shop needs CNC operators, and the skill moves cleanly between employers. A Boeing-trained setup machinist is instantly hire-able at Lockheed Martin, Raytheon, Zimmer Biomet, or Stryker with no ramp cost.
Q5. Where do you see your career in 5 years?closer
Setup CNC Operator by year 2-3 (fixture and first-piece sign-off), Sr CNC Machinist on multi-axis by year 4-5, and enrolled in the plant's CNC Programmer track by year 5. My target is a CNC Programmer role at a large aerospace or medical-device shop β€” Boeing Auburn, Lockheed Sunnyvale, Zimmer Biomet Warsaw, or Stryker Mahwah β€” which clears $75-95k salary or $34-42/hr with OT. Long-term I want to move into CNC Manufacturing Engineer at $110-135k. To get there I'll add NIMS Level II Milling and Turning, Mastercam or Fusion 360 certification, GD&T (ASME Y14.5) certification, and AS9100 or ISO 13485 auditor training β€” all typically employer-paid at these companies.

Resume Template β€” CNC Operator (0-2 yrs)

Copy these bullets into your resume as a starting point. Career Kit includes bullets for every level of the ladder.

CNC Operator (0-2 yrs)
  • β–ΈRan Haas VF-2 and Mazak Integrex 3-axis mills at Parker Hannifin hydraulics plant (Cleveland, OH); hydraulic manifold and valve body parts to Β±0.02 mm tolerance.
  • β–ΈZero shipped out-of-spec parts across 1,600+ production hours; consistent top-quartile on operator scorecard.
  • β–ΈWear-offset adjustments performed independently on 3 part families; first-piece qualified on 2.
  • β–ΈNIMS Level I Machining Fundamentals certified. OSHA 10 certified. $20.75/hr + $1.75 3rd-shift differential + OT.

What Gets You Rejected

  • βœ—Overriding tool-wear alarms or program-hold conditions without setup-machinist sign-off β€” a career-ender at aerospace and medical-device employers.
  • βœ—Skipping first-piece inspection or in-process CMM sampling β€” an AS9100 or ISO 13485 corrective-action finding and a personal disciplinary record.
  • βœ—Crashing a machine and not reporting it β€” every crash requires an accident-investigation write-up. Hiding a crash is instant termination at Boeing, Lockheed Martin, and every large machine shop.
  • βœ—Loose clothing, jewelry, or long unrestrained hair around spindles β€” universal write-up and often instant termination on second offense.
  • βœ—Poor 5S at the machine (chips everywhere, tools loose, gauges misplaced) β€” feeds directly into annual coaching and delays setup-machinist qualification.
  • βœ—Cell phone at the machine outside designated break periods β€” universal write-up at Boeing, Lockheed Martin, Raytheon, Timken, and Zimmer Biomet.
  • βœ—Attendance is #1 β€” 3 unexcused absences during probation typically ends the offer at every aerospace and medical-device employer.

Salary Negotiation Levers

  • βœ“Industry premium β€” aerospace (Boeing, Lockheed Martin, Raytheon) and medical-device (Zimmer Biomet, Stryker) pay 15-30% above generic job-shop CNC rates for the same seniority.
  • βœ“Certifications compound: NIMS Level I ($1-2/hr differential), NIMS Level II Milling or Turning ($1.50-3/hr), Mastercam / Fusion 360 CAM certification ($2-4/hr), GD&T ASME Y14.5 ($1-2/hr), AS9100 or ISO 13485 auditor training ($2-4/hr).
  • βœ“Multi-axis experience commands premium β€” 4th-axis rotary adds $2-3/hr, 5-axis adds $3-6/hr, Swiss-turn adds $2-4/hr.
  • βœ“Setup machinist premium β€” the operator-to-setup step adds $3-5/hr and unlocks OT priority and first-piece sign-off authority.
  • βœ“Programmer premium β€” the setup-to-programmer step adds $4-8/hr and moves you to salary in many shops.
  • βœ“OT eligibility is significant β€” aerospace CNC shops run 45-55 hour weeks. Time-and-a-half adds $10-25k/year.
  • βœ“Sign-on bonuses of $2,000-8,000 are common at aerospace and medical-device employers running under target headcount β€” always ask, especially with NIMS credentials or multi-axis experience.
  • βœ“Metro premium: WA (Boeing), CA (Lockheed, Raytheon), CT (aerospace), IN (Zimmer Biomet), MI (Roush) pay 12-25% above the national median.

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Computer Numerically Controlled Tool Operators Salary by State

Best Cities (cost-adjusted) β†’

Salary Map β€” Click a state for details

$40K
$108Kβ–  No data

Top Paying States

Washington
$108K
+113%
Massachusetts
$62K
+22%
North Dakota
$60K
+19%
Connecticut
$60K
+18%
New Hampshire
$60K
+18%
Maine
$60K
+18%
Vermont
$58K
+13%
Rhode Island
$57K
+13%
Minnesota
$57K
+12%
Oregon
$57K
+12%
Vertical line = national median. Click a state for full details.
StateMedianvs. National
Washington$107,920+112.9%
Massachusetts$61,630+21.6%
North Dakota$60,250+18.9%
Connecticut$59,840+18.1%
New Hampshire$59,730+17.8%
Maine$59,660+17.7%
Vermont$57,500+13.4%
Rhode Island$57,390+13.2%
Minnesota$56,780+12.0%
Oregon$56,670+11.8%
1–10 of 48

Computer Numerically Controlled Tool Operators Salary by Metro Area

Metro AreaMedianvs. National
Seattle-Tacoma-Bellevue, WA$109,600+116.2%
Boston-Cambridge-Newton, MA-NH$64,180+26.6%
Albany, OR$64,170+26.6%
Fargo, ND-MN$63,610+25.5%
Morristown, TN$62,760+23.8%
Lewiston, ID-WA$62,000+22.3%
Weirton-Steubenville, WV-OH$61,830+22.0%
Huntsville, AL$61,790+21.9%
Manchester-Nashua, NH$61,650+21.6%
Sandusky, OH$61,360+21.0%
1–10 of 286
Data Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS). Data reflects the most recent annual survey.
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