Machinists

Production Occupations
O*NET-SOC コード
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.

  • データ出典: BLS公表時点: 2026-08

    中程度· 相対

    低い4段階の相対区分非常に高い

    職業群単位の値

    尺度・母数・出典

    4段階の相対区分（低い / 中程度 / 高い / 非常に高い）

    BLS雇用見通し表の詳細職業831件が母数。値は NEM(全国雇用マトリクス)コード単位で付与されるため、同じ NEM コードの職業は同じバンドになります

    出典データセット（XLSX ファイルのダウンロード）

  • データ出典: Anthropic公表時点: 2026-03

    0.000

    0.000ここに掲載された値の範囲0.745
    尺度・母数・出典

    観測エクスポージャー指数、公開されたまま0–1

    O*NETタスクへの対応づけが基準

    SOC 2018の職業単位で公表された値で、同じSOC 2018コードを持つO*NET職業はすべてこの値になります

    出典データセット（CSV ファイルのダウンロード）

  • データ出典: ILO公表時点: 2025

    0.18

    0.09ここに掲載された値の範囲0.70

    職業群単位の値

    尺度・母数・出典

    生成AI露出度指数、公開されたまま0–1

    ISCO-08の細分類（4桁）単位で公表された値です。米国労働統計局（BLS）の公式対応表（ISCO-08→2010 SOC、2010 SOC→2018 SOC）を公表どおり適用してこの職業に結び付けており、対応は全部または一部です

    出典データセット（PDF ファイルのダウンロード）

この出典がどのような性格の値か

BLSの区分は絶対水準ではなく相対順位であり、一次測定でもありません。複数の既存研究が付けた職業別パーセンタイル順位を4段階にまとめた値です。雇用や賃金の予測でもなく、導入確率でもなく、自動化と増強を区別しません。

Task-level exposure

露出のある作業のみ

評価済みタスク 29 件 · β ≥ 0.5 のタスク 8 件（27.6%）

β = 直接的な露出（E1）+ 0.5 × ツール利用時の露出（E2）。原典リポジトリの定義に従います。

  • 原典の単位：O*NET 27.2 のタスク → O*NET 31.0 の職業コード
  • 評価済みタスクはすべて O*NET 31.0 のタスク一覧にあります。
出典
OpenAI "GPTs are GPTs" exposure rubric
版
gh-main-0471612
ライセンス
MIT License, Copyright (c) 2024 OpenAI
Task (O*NET 30.2)Claude.aiRaw / share %APIRaw / share %
Advise clients about the materials being used for finished products.

51-4041.00

0.0300100.00.00000.0
Prepare working sketches for the illustration of product appearance.

51-4041.00

0.00000.0—0
Evaluate machining procedures and recommend changes or modifications for improved efficiency or adaptability.

51-4041.00

0.00000.0—0
Not observed on any surface — 26 task(s) — These tasks have no row in the source for this release. The 0 in the share row is a display-stage composition ratio; absence is what the — in the raw row states.
Machine parts to specifications, using machine tools, such as lathes, milling machines, shapers, or grinders.
—0—0
Measure, examine, or test completed units to check for defects and ensure conformance to specifications, using precision instruments, such as micrometers.
—0—0
Align and secure holding fixtures, cutting tools, attachments, accessories, or materials onto machines.
—0—0
Monitor the feed and speed of machines during the machining process.
—0—0
Lay out, measure, and mark metal stock to display placement of cuts.
—0—0
Check work pieces to ensure that they are properly lubricated or cooled.
—0—0
Operate equipment to verify operational efficiency.
—0—0
Program computers or electronic instruments, such as numerically controlled machine tools.
—0—0
Confer with engineering, supervisory, or manufacturing personnel to exchange technical information.
—0—0
Confer with numerical control programmers to check and ensure that new programs or machinery will function properly and that output will meet specifications.
—0—0
Fit and assemble parts to make or repair machine tools.
—0—0
Design fixtures, tooling, or experimental parts to meet special engineering needs.
—0—0
Dispose of scrap or waste material in accordance with company policies and environmental regulations.
—0—0
Separate scrap waste and related materials for reuse, recycling, or disposal.
—0—0
Calculate dimensions or tolerances, using instruments, such as micrometers or vernier calipers.
—0—0
Set up, adjust, or operate basic or specialized machine tools used to perform precision machining operations.
—0—0
Maintain machine tools in proper operational condition.
—0—0
Study sample parts, blueprints, drawings, or engineering information to determine methods or sequences of operations needed to fabricate products.
—0—0
Diagnose machine tool malfunctions to determine need for adjustments or repairs.
—0—0
Install repaired parts into equipment or install new equipment.
—0—0
Dismantle machines or equipment, using hand tools or power tools to examine parts for defects and replace defective parts where needed.
—0—0
Establish work procedures for fabricating new structural products, using a variety of metalworking machines.
—0—0
Support metalworking projects from planning and fabrication through assembly, inspection, and testing, using knowledge of machine functions, metal properties, and mathematics.
—0—0
Install experimental parts or assemblies, such as hydraulic systems, electrical wiring, lubricants, or batteries into machines or mechanisms.
—0—0
Set up or operate metalworking, brazing, heat-treating, welding, or cutting equipment.
—0—0
Test experimental models under simulated operating conditions, for purposes such as development, standardization, or feasibility of design.
—0—0

Data sources & licenses — O*NET®, Anthropic Economic Index, Eloundou et al. (2023): see full notices on the Credits page

O*NET 31.0 のタスク全件（29件）

この職業の O*NET 31.0 のタスク全件（英語原文、種別はコア・補足）。露出値はこの一覧には載せず、上の表で各出典が用いた O*NET 版の文言の横にあります。

タスク（O*NET 31.0）種類
Machine parts to specifications, using machine tools, such as lathes, milling machines, shapers, or grinders.コア
Measure, examine, or test completed units to check for defects and ensure conformance to specifications, using precision instruments, such as micrometers.コア
Align and secure holding fixtures, cutting tools, attachments, accessories, or materials onto machines.コア
Monitor the feed and speed of machines during the machining process.コア
Lay out, measure, and mark metal stock to display placement of cuts.コア
Check work pieces to ensure that they are properly lubricated or cooled.コア
Operate equipment to verify operational efficiency.コア
Program computers or electronic instruments, such as numerically controlled machine tools.コア
Confer with engineering, supervisory, or manufacturing personnel to exchange technical information.コア
Confer with numerical control programmers to check and ensure that new programs or machinery will function properly and that output will meet specifications.コア
Fit and assemble parts to make or repair machine tools.コア
Design fixtures, tooling, or experimental parts to meet special engineering needs.コア
Dispose of scrap or waste material in accordance with company policies and environmental regulations.コア
Separate scrap waste and related materials for reuse, recycling, or disposal.コア
Calculate dimensions or tolerances, using instruments, such as micrometers or vernier calipers.コア
Set up, adjust, or operate basic or specialized machine tools used to perform precision machining operations.コア
Maintain machine tools in proper operational condition.コア
Study sample parts, blueprints, drawings, or engineering information to determine methods or sequences of operations needed to fabricate products.コア
Diagnose machine tool malfunctions to determine need for adjustments or repairs.コア
Evaluate machining procedures and recommend changes or modifications for improved efficiency or adaptability.コア
Install repaired parts into equipment or install new equipment.補足
Advise clients about the materials being used for finished products.補足
Dismantle machines or equipment, using hand tools or power tools to examine parts for defects and replace defective parts where needed.補足
Establish work procedures for fabricating new structural products, using a variety of metalworking machines.補足
Support metalworking projects from planning and fabrication through assembly, inspection, and testing, using knowledge of machine functions, metal properties, and mathematics.補足
Prepare working sketches for the illustration of product appearance.補足
Install experimental parts or assemblies, such as hydraulic systems, electrical wiring, lubricants, or batteries into machines or mechanisms.補足
Set up or operate metalworking, brazing, heat-treating, welding, or cutting equipment.補足
Test experimental models under simulated operating conditions, for purposes such as development, standardization, or feasibility of design.補足

職業情報

雇用見通し（BLS）

雇用者数、2025
288K
雇用者数見通し、2035
291K
変化率 (2025–35)
+1%
年間賃金の中央値、2025
$58,750
入職時に通常必要な学歴
High school diploma or equivalent
最低 $30,890BLS EP 2025–35 の詳細職業825件の賃金中央値の範囲最高 $559,030

出典: U.S. Bureau of Labor Statistics, Employment Projections 2025–35 — Employment by detailed occupation, 2025 and projected 2035

韓国職業分類との対応（KSCO）

AI Changing Work が作成した Korea Occupation Direct Crosswalk v1.1 現行版の対応です。関係の値は O*NET-SOC 職業の側から読みます。

KSCO コードKSCO 名称関係状態
85101선반기 조작원この職業のほうが広い確定
85102밀링기 조작원この職業のほうが広い確定
85107머시닝센터 조작원この職業のほうが広い確定

関係と状態の定義(kr-direct v1.1)

ILO（国際労働機関）の職業説明

以下のISCO-08職業群は、AI Changing Workが米国労働統計局（BLS）の発行するクロスウォーク（2018 SOC→2010 SOC、2010 SOC→ISCO-08）を個別の選択なしにそのまま適用して、この職業に結び付けたものです。結び付きは全体的な対応の場合も部分的な対応の場合もあります。

  • ISCO-08 7223Metal Working Machine Tool Setters and Operators

    金属工作機準備工、金属工作機械工

出典: 総務省「国際標準職業分類（ISCO）2008年改定版（仮訳）分類項目名一覧（和英対照）」— 原著：ILO ISCO-08 © International Labour Organization（日本語訳は総務省がILOの許可を得て作成）

原文を見る

Sources: ILO ISCO-08 — details: Credits

ESCO 職業語彙

以下の各項目は、公開されているESCO-O*NET Crosswalk（バージョン1、2022年）で、この職業と一つずつ対応付けられたものです。対応の種類はそのクロスウォークによるもので、表現はAI Changing Workによるものです。

  • computer numerical control machine operatorESCO 7223.4この職業のほうが広い

    Computer numerical control machine operators set-up, maintain and control a computer numerical control machine in order to execute the product orders. They are responsible for programming the machines, ensuring the required parameters and measurements are met while maintaining the quality and safety standards.

  • fitter and turnerESCO 7223.7この職業のほうが広い

    Fitters and turners use machine tools to create and modify metal parts according to set specifications in order to fit components for machinery. They ensure the finished components are ready for assembly.

  • gear machinistESCO 7223.8この職業のほうが広い

    Gear machinists make precision parts for gears and other driving elements. They use a variety of machine tools.

  • lathe and turning machine operatorESCO 7223.4.4この職業のほうが広い

    Lathe and turning machine operators set up, program and tend lathe and turning machines designed to cut excess metal from a metal workpiece using a hardened cutting tool moved by computer-controlled motors. They read lathe and turning machine blueprints and tooling instructions, perform regular machine maintenance, and make adjustments to the lathe controls, such as the depth of cuts and the rotation speed.

  • metal planer operatorESCO 7223.12この職業のほうが広い

    Metal planer operators set up and operate a planer, which is a metalworking machine designed to cut excess material from a metal workpiece using linear relative motion between the planer's cutting tool and the workpiece in order to create a linear toolpath and cut.

  • milling machine operatorESCO 7223.4.6この職業のほうが広い

    Milling machine operators set up, program and control milling machines, designed to cut excess material from metal workpieces using a computer-controlled rotary-cutting, milling cutter. They read milling machine blueprints and tooling instructions, perform regular machine maintenance, and make adjustments to the milling controls, such as the depth of cuts or the rotation speed.

  • screw machine operatorESCO 7223.19この職業のほうが広い

    Screw machine operators set up and tend mechanical screw machines designed to manufacture (threaded) screws out of processed metal workpieces, specifically small- to medium-sized ones that have been turned by a lathe and turn machine.

  • tool and die makerESCO 7222.5この職業のほうが広い

    Tool and die makers operate a variety of equipment and machinery designed to create metal tools and dies, which are both needed in several areas of manufacturing, and produce these tools in all steps of the production process. They design the tools and dies, then cut and shape them to size and finish them by manually operated machine tools, power tools, hand tools, or programming and tending CNC tool and die making machines.

出典: European Commission, DG EMPL — ESCO API 2026-08-08 (bridge v1.2.1)

ライセンス: CC BY 4.0 (EU Reuse Notice)

原文を見る

ESCO reuse terms and the modification notice are in Credits.

フランス職業分類との対応（ROME）

この職業と ROME 4.0 の職業票（fiche）との対応で、AI Changing Work が AI モデルを用いて判定したものです。関係はこの職業の側から読みます。「暫定」と表示した対応は、同じモデル系列（Claude）の二人の判定者による判定のみ、またはその判定に運営者の規則を適用して採用したものであり、確定した対応より根拠が弱くなります。

ROME コードROME 名称（フランス語）関係
H2903Usineur / Usineuseこの職業のほうが狭い
H2516Technicien / Technicienne de production du travail des métauxこの職業のほうが広い
H2901Ajusteur-monteur / Ajusteuse-monteuse関連（対応ではない）
H2925Armurier / Armurière de fabrication関連（対応ではない）

Source: France Travail — Répertoire Opérationnel des Métiers et des Emplois (ROME 4.0), version 61, last updated 15 June 2026 (https://www.data.gouv.fr/datasets/repertoire-operationnel-des-metiers-et-des-emplois-rome). Licence Ouverte 2.0.

ROME codes and titles are reproduced unchanged; the links to O*NET-SOC occupations are AI Changing Work's own judgment and are not a France Travail correspondence.

(AI Changing Work link release: fr-direct v1)

スペイン職業分類との対応（CNO-11）

この職業と CNO-11 の職業との対応で、AI Changing Work が AI モデルを用いて判定したものです。関係はこの職業の側から読みます。

CNO-11 コードCNO-11 名称（スペイン語）関係
7322Trabajadores de la fabricación de herramientas, mecánico-ajustadores, modelistas, matriceros y afines重なるが同じではない
7323Ajustadores y operadores de máquinas-herramienta重なるが同じではない

Source: Instituto Nacional de Estadística (INE), National Classification of Occupations 2011 (CNO-11, Royal Decree 1591/2010) — www.ine.es · Licensed CC BY 4.0. CNO-11 codes and Spanish titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own judgment and are not an INE correspondence.

(AI Changing Work link release: es-direct v1)

ドイツ職業分類との対応（KldB）

この職業と KldB の職業との対応で、AI Changing Work が AI モデルを用いて判定したものです。関係はこの職業の側から読みます。

KldB コードKldB 名称（ドイツ語）関係
24232Berufe in der spanenden Metallbearbeitung - fachlich ausgerichtete Tätigkeitenこの職業のほうが狭い
24512Berufe in der Feinwerktechnik - fachlich ausgerichtete Tätigkeiten関連（対応ではない）

Source: © Statistik der Bundesagentur für Arbeit — Klassifikation der Berufe 2010 – überarbeitete Fassung 2020, https://statistik.arbeitsagentur.de. KldB codes and titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own mapping (eigene Zuordnung) and are not a Bundesagentur für Arbeit correspondence.

(AI Changing Work link release: de-direct v1)

日本職業分類との対応（JSCO）

この職業と JSCO の職業との対応で、AI Changing Work が AI モデルを用いて判定したものです。関係はこの職業の側から読みます。

JSCO コードJSCO 名称（日本語）関係
523金属工作機械作業従事者この職業のほうが狭い暫定
541はん用・生産用・業務用機械器具組立従事者関連（対応ではない）暫定
551はん用・生産用・業務用機械器具整備・修理従事者関連（対応ではない）暫定

Source: Ministry of Internal Affairs and Communications (MIC), Japan Standard Occupational Classification (Dec. 2009, MIC Notification No. 555). JSCO codes and Japanese titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own judgment and are not a MIC correspondence.

(AI Changing Work link release: jp-direct v1)

このページのデータの出典・ライセンスと AI Changing Work による改変・翻訳の告知：クレジットと出典