Machinists
Production Occupations- O*NET-SOC code
- 51-4041.00
Set up and operate a variety of machine tools to produce precision parts and instruments out of metal. Includes precision instrument makers who fabricate, modify, or repair mechanical instruments. May also fabricate and modify parts to make or repair machine tools or maintain industrial machines, applying knowledge of mechanics, mathematics, metal properties, layout, and machining procedures.
AI exposure
- Data source: BLSPublished: 2026-08
Moderate· relative
LowFour relative bandsVery highGroup-level value
Scale, basis and source
Four relative bands (Low / Moderate / High / Very high)
831 detailed occupations in the BLS Employment Projections table. Assigned per National Employment Matrix (NEM) code, so occupations sharing a NEM code carry the same band
- Data source: AnthropicPublished: 2026-03
0.000
0.000Range of values carried here0.745Scale, basis and source
Observed exposure index, 0–1 as published
Mapped onto O*NET tasks
Published per SOC 2018 occupation; every O*NET occupation with the same SOC 2018 code carries this value
- Data source: ILOPublished: 2025
0.18
0.09Range of values carried here0.70Group-level value
Scale, basis and source
Generative AI exposure index, 0–1 as published
Published per ISCO-08 unit group. Linked to this occupation, wholly or in part, by applying U.S. Bureau of Labor Statistics crosswalks (ISCO-08 to 2010 SOC, 2010 SOC to 2018 SOC) as published
What kind of figure this source publishes
The BLS category is a relative rank, not an absolute level, and it is not a first-hand measurement: it groups an occupation's percentile ranks across several published studies into four bands. It is not an employment or wage forecast, not a probability of adoption, and it does not separate automation from augmentation.
AI exposure (OpenAI rubric)
29 rated tasks · 8 tasks with β ≥ 0.5 (27.6%)
β = direct exposure (E1) + 0.5 × exposure when tools are available (E2), per the source repository's definition.
- Source unit: O*NET 27.2 tasks → O*NET 31.0 occupation code
- All rated tasks are in the O*NET 31.0 task list.
- Source
- OpenAI "GPTs are GPTs" exposure rubric
- Release
- gh-main-0471612
- License
- MIT License, Copyright (c) 2024 OpenAI
Tasks
Task statements from the O*NET® 31.0 Database, core tasks first.
| Task | Type | β (OpenAI) |
|---|---|---|
| Machine parts to specifications, using machine tools, such as lathes, milling machines, shapers, or grinders. | Core | 0 |
| Measure, examine, or test completed units to check for defects and ensure conformance to specifications, using precision instruments, such as micrometers. | Core | 0 |
| Align and secure holding fixtures, cutting tools, attachments, accessories, or materials onto machines. | Core | 0 |
| Monitor the feed and speed of machines during the machining process. | Core | 0 |
| Lay out, measure, and mark metal stock to display placement of cuts. | Core | 0.5 |
| Check work pieces to ensure that they are properly lubricated or cooled. | Core | 0 |
| Operate equipment to verify operational efficiency. | Core | 0 |
| Program computers or electronic instruments, such as numerically controlled machine tools. | Core | 1 |
| Confer with engineering, supervisory, or manufacturing personnel to exchange technical information. | Core | 1 |
| Confer with numerical control programmers to check and ensure that new programs or machinery will function properly and that output will meet specifications. | Core | 1 |
| Fit and assemble parts to make or repair machine tools. | Core | 0 |
| Design fixtures, tooling, or experimental parts to meet special engineering needs. | Core | 0.5 |
| Dispose of scrap or waste material in accordance with company policies and environmental regulations. | Core | 0 |
| Separate scrap waste and related materials for reuse, recycling, or disposal. | Core | 0 |
| Calculate dimensions or tolerances, using instruments, such as micrometers or vernier calipers. | Core | 0 |
| Set up, adjust, or operate basic or specialized machine tools used to perform precision machining operations. | Core | 0 |
| Maintain machine tools in proper operational condition. | Core | 0 |
| Study sample parts, blueprints, drawings, or engineering information to determine methods or sequences of operations needed to fabricate products. | Core | 0.5 |
| Diagnose machine tool malfunctions to determine need for adjustments or repairs. | Core | 0 |
| Evaluate machining procedures and recommend changes or modifications for improved efficiency or adaptability. | Core | 1 |
| Install repaired parts into equipment or install new equipment. | Supplemental | 0 |
| Advise clients about the materials being used for finished products. | Supplemental | 0 |
| Dismantle machines or equipment, using hand tools or power tools to examine parts for defects and replace defective parts where needed. | Supplemental | 0 |
| Establish work procedures for fabricating new structural products, using a variety of metalworking machines. | Supplemental | 0 |
| Support metalworking projects from planning and fabrication through assembly, inspection, and testing, using knowledge of machine functions, metal properties, and mathematics. | Supplemental | 0 |
| Prepare working sketches for the illustration of product appearance. | Supplemental | 0.5 |
| Install experimental parts or assemblies, such as hydraulic systems, electrical wiring, lubricants, or batteries into machines or mechanisms. | Supplemental | 0 |
| Set up or operate metalworking, brazing, heat-treating, welding, or cutting equipment. | Supplemental | 0 |
| Test experimental models under simulated operating conditions, for purposes such as development, standardization, or feasibility of design. | Supplemental | 0 |
Occupation information
Sources and attribution
This page includes information from the O*NET® 31.0 Database (https://www.onetcenter.org/database.html) by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license (https://creativecommons.org/licenses/by/4.0/). O*NET® is a trademark of USDOL/ETA. AI Changing Work has modified all or some of this information: the O*NET-SOC code, title and task statements are reproduced in English without change; task-type labels are shown in the page's language and tasks are listed core first; any Korean occupation title shown on the Korean-language page is AI Changing Work's translation; any KSCO-8 unit groups linked to this occupation were paired with it by AI Changing Work's judgment, and the relation labels and statuses are AI Changing Work's additions. USDOL/ETA has not approved, endorsed, or tested these modifications.
Any AI exposure figures on this page are published by third parties, not by AI Changing Work, and none is part of the O*NET information. OpenAI publishes task-level scores (MIT License) for O*NET 27.2 task statements; each is shown next to the O*NET 31.0 task statement with the same task ID, whose wording can differ from the 27.2 statement that was scored. OpenAI also publishes occupation-level scores for O*NET-SOC codes in the same release, and any such score is shown on the O*NET occupation with the same code. Anthropic publishes an observed exposure index in the Anthropic Economic Index (CC-BY), and the U.S. Bureau of Labor Statistics publishes relative AI exposure categories (public domain); both are published per SOC code, and each value is shown on every O*NET occupation with that code. The International Labour Organization publishes a generative AI exposure index in ILO Working Paper 140 (CC BY 4.0) for ISCO-08 unit groups; AI Changing Work links those groups to O*NET occupations by applying the U.S. Bureau of Labor Statistics ISCO-08 to 2010 SOC and 2010 SOC to 2018 SOC crosswalks as published, without case-by-case selection, and these crosswalks match many groups only in part. Where several unit groups are linked, each group's published value is listed, and any summary shows only the lowest and highest of those values with the number of groups; no exposure figure is averaged or recalculated. Any employment figures are published by the U.S. Bureau of Labor Statistics for the SOC group containing this occupation. Each source is credited where its figures are shown.
O*NET OnLine: 51-4041.00 Machinists
KSCO 코드·명칭: 한국표준직업분류(제8차 개정) — 통계청 고시 제2024-328호 (2024-07-01 고시, 2025-01-01 시행). 저작권법 제7조 제2호의 고시 항목이다. 명칭 표기(가운뎃점·띄어쓰기)는 해설서 2차 정오 반영판의 표기를 따랐으며, 고시 항목표와는 18개 명칭에서 가운뎃점 글리프나 띄어쓰기만 다르다. 통계청은 2025년 10월 국가데이터처로 개편되었다. 이 페이지의 KSCO 연결은 통계청·국가데이터처의 공식 연계표가 아니다.