Trade · ONET 51-4041.00

Machinist

Makes precision metal parts using manual and CNC machine tools.

What the work looks like

Machinists read prints, plan operations, set up lathes and mills, run parts, measure against tolerance, and deliver finished work to inspection. Modern machinists spend most of their time at CNC machines (Haas, Mazak, DMG Mori), programming offsets, loading tools, and running production. Prototype and tool-and-die work still relies on manual mills, grinders, and hand finishing.

Physical demands

Standing for full shifts
Lifting tooling, fixtures, and stock
Hearing protection in production environments
Working around cutting fluids and chips (PPE required)

Common tools

Digital calipers and micrometers
Height gauge and surface plate
Edge finder and indicator
Tool library (endmills, drills, taps, inserts)
CNC control pendant
CAM software (Mastercam, Fusion 360)

Union and non-union paths

Manufacturing machinists are sometimes represented by the IAM (International Association of Machinists and Aerospace Workers), particularly in aerospace and defense. Much of small-shop machining is non-union. Credentials recognized industry-wide include NIMS (National Institute for Metalworking Skills) certifications and NTMA training.

How to enter

Entry routes include two-year community college programs, NIMS-aligned apprenticeships, and direct hire as a machine operator. Career progression typically moves from operator to setup to programmer to lead. Aerospace and medical shops often require additional certifications (ITAR compliance, AS9100 training) before being placed on production.

Specialty paths in this trade

Most states license one machinist classification, but the work splits into distinct paths with different schedules, tools, and wage schedules. Read before choosing a program.

Manual Mill/Lathe Machinist

The foundation of the trade. Manual machinists run Bridgeport-style mills, engine lathes, and surface grinders for prototype work, repair, tooling, and short runs where writing a program would take longer than cutting the part. Manual skill remains the baseline for reading prints, holding tolerance, and understanding what the CNC is actually doing.

Typical scope

Prototype and one-off parts from drawings or sketches
Repair work, broken-part replacement, and tool-room support
Fixture and jig fabrication
Surface grinding and manual finishing to final tolerance

Entry: Community college machining programs, NIMS Level I credentials, or a registered machinist apprenticeship. Many shops start new hires on manual equipment before moving them to CNC.

Wage note: Wages vary by region and industry. Check BLS OES 51-4041 state and metro tables before comparing offers.

CNC Operator / Setup

The production core of modern machining. Operators load stock, start cycles, deburr, and inspect. Setup machinists stage the tool library, probe work offsets, prove out the first article, and hand off to the operator for the run. Setup is the step where wages typically jump past operator scale.

Typical scope

Loading raw stock and unloading finished parts on VMCs and turning centers
Tool presetting, offset entry, and probing work-zero
First-article inspection and in-process SPC checks
Troubleshooting chatter, tool wear, and surface-finish issues

Entry: Entry as operator often needs only a high-school diploma and on-the-job training. Setup requires demonstrated tool-library management and G-code literacy, typically NIMS Level II credentials or 1 to 2 years on the floor.

Wage note: Operator wages typically sit below setup; setup wages sit below programmer. Ask how the shop draws the line before accepting an offer.

CNC Programmer

Writes toolpaths in CAM software (Mastercam, Fusion 360, NX, Edgecam), posts code to the machine, and proves out new parts. In smaller shops the programmer also sets up and runs the first article; in larger shops programming is a separate desk. Aerospace and medical programmers also write fixture plans and inspection routines.

Typical scope

CAM programming for 3-axis mills, turning centers, and mill-turn
Post-processor tuning and G-code editing
First-article proveout and cycle-time optimization
Documentation: setup sheets, tool lists, fixture drawings

Entry: Typically 3 to 5 years of setup experience plus vendor CAM certification (Mastercam Certified Associate or Fusion 360 credential). NIMS CNC Milling/Turning Programmer credentials are recognized across most industries.

Wage note: Programmer wages commonly sit at or above journey-level pay in the same shop. Aerospace and medical programming pays above general job-shop programming.

Tool-and-Die Maker

Builds and repairs the stamping dies, injection molds, and production tooling that feed the rest of manufacturing. Tool-and-die is a distinct BLS occupation (51-4111) and is often treated as the top of the machining ladder. Work combines precision grinding, EDM, manual and CNC machining, fitting, and heat-treat coordination.

Typical scope

Stamping die build, try-out, and repair
Injection mold build, polish, and repair
Wire and sinker EDM for complex cavities
Fit-and-finish to tenths tolerance by hand

Entry: Registered tool-and-die apprenticeship, typically 4 to 5 years and roughly 8,000 OJT hours. NIMS Tool and Die credentials validate the skill set for employers outside the shop that trained you.

Wage note: Tool-and-die wages typically sit above general machinist wages in the same region. Supply of experienced die makers is tight in most metros; see BLS OES 51-4111 for tool-and-die-specific wage tables.

Swiss / 5-Axis Specialist

Swiss-type lathes (Citizen, Tsugami, Star) run small, high-precision turned parts for medical, aerospace, and watch work; the guide bushing holds tolerance that a standard lathe cannot. 5-axis machining centers cut complex geometry (impellers, blades, orthopedic implants) in a single setup. Both are specialist tracks with their own setup and programming conventions.

Typical scope

Swiss-type lathe setup for medical bone screws, connectors, and small precision turned parts
5-axis simultaneous and 3+2 positioning for aerospace structural and rotating parts
Multi-channel programming on Swiss mill-turn platforms
Fixture design for 5-axis, including trunnion and tombstone setups

Entry: Typically 3 to 5 years of general CNC setup experience followed by vendor-specific training (Citizen, Mazak, DMG Mori). Aerospace shops may require AS9100 orientation before placement on production.

Wage note: Swiss and 5-axis specialists commonly earn a premium over general CNC setup in the same region. Medical-device and aerospace work typically pays above automotive and general job-shop work.

QC / Inspection

Quality control and inspection staff verify that parts meet print. Work ranges from in-process SPC on the floor to CMM programming, PPAP documentation for automotive, and FAI (first article inspection) packages for aerospace AS9102. Many machinists move into QC after journey-level experience.

Typical scope

CMM programming (PC-DMIS, Calypso) and fixture setup
GD&T interpretation and datum-structure analysis
First Article Inspection reports (AS9102) and PPAP submissions
Gage R&R studies and SPC chart review

Entry: Community college quality programs, ASQ Certified Quality Inspector (CQI) or Certified Quality Technician (CQT), plus demonstrated GD&T fluency. Many QC leads come off the floor after 5+ years of machining experience.

Wage note: QC wages vary widely. Aerospace and medical CMM programmers typically earn at or above machinist setup wages; floor inspectors often sit below.

Residential, commercial, industrial

Machinists do not work residential. The meaningful divide is by shop type and industry, which sets pay, pace, and paperwork.

Certifications that unlock premium work

Credentials beyond the state license. Each one opens a specific segment of work where the qualified pool is smaller.

NIMS Level I Machining ↗

The National Institute for Metalworking Skills Level I credentials cover measurement, materials, safety, job planning, benchwork, drill press, turning, milling, and grinding fundamentals. Entry-credential most community-college programs align to. Widely recognized across U.S. manufacturing.