Assemble machine tools, parts, or fixtures.

Assemble machine tools, parts, or fixtures. is a detailed work activity in O*NET — a concrete unit of work shared across 7 occupations and seen in 7 occupation-specific tasks. It rolls up into the broader work activity Assemble equipment or components. in Handling and Moving Objects .

Detailed work activities are the most granular shared layer in O*NET's work-activity hierarchy (Generalized → Intermediate → Detailed → occupation-specific task). The figures below describe how this activity shows up across the economy and what independent studies measure about AI and this kind of work — not a prediction that the work will be automated.

AI exposure

Of the 7 tasks under this activity that the OpenAI / Eloundou “GPTs are GPTs” study rated, 0 (0%) are flagged as directly exposed to language models (E1) or exposed via model-powered tools (E2).

Exposure estimates overlap with model capabilities — whether a model could speed the task up — not whether the work will be done by software. Observed AI use is augmentation and assistance today, not jobs replaced.

Member tasks

Occupation-specific tasks O*NET maps to this detailed work activity, most important first.

• Fit and assemble parts to make or repair machine tools. · Machinists · importance 4.4 · no direct exposure
• Fit parts together in pre-assembly to ensure that dimensions are accurate. · Tool Grinders, Filers, and Sharpeners · importance 4.1 · no direct exposure
• Fit and assemble parts to make, repair, or modify dies, jigs, gauges, and tools, using machine tools, hand tools, or welders. · Tool and Die Makers · importance 4.1 · no direct exposure
• Devise and construct tools, dies, molds, jigs, and fixtures, or modify existing tools and equipment. · Model Makers, Metal and Plastic · importance 3.9 · no direct exposure
• Build jigs that can be used as guides for assembling oversized or special types of box shooks. · Model Makers, Wood · importance 3.7 · no direct exposure
• Devise or build fixtures or jigs used to hold parts in place during welding, brazing, or soldering. · Welding, Soldering, and Brazing Machine Setters, Operators, and Tenders · importance 3.5 · no direct exposure
• Assemble fittings, valves, bowls, plates, disks, impeller shafts, or other parts to prepare equipment for operation. · Separating, Filtering, Clarifying, Precipitating, and Still Machine Setters, Operators, and Tenders · importance 3.4 · no direct exposure

Occupations that perform this

• Machinists
• Tool Grinders, Filers, and Sharpeners
• Tool and Die Makers
• Model Makers, Metal and Plastic
• Model Makers, Wood
• Welding, Soldering, and Brazing Machine Setters, Operators, and Tenders
• Separating, Filtering, Clarifying, Precipitating, and Still Machine Setters, Operators, and Tenders

Sources for this page

Every figure above traces to a named public dataset and the exact release below — not hand-written opinion. See the full methodology for what each measure does and does not mean.

• O*NET 30.3 U.S. Department of Labor / National Center for O*NET Development
• “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130 OpenAI / academic

Data compiled June 2, 2026. Figures are estimates, not advice.

@misc{singulariki-assemble-machine-tools-parts-or-fixtures,
  title  = {Assemble machine tools, parts, or fixtures.},
  author = {{Singulariki}},
  year   = {2026},
  note   = {O*NET 30.3; “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130. Accessed June 7, 2026},
  url    = {https://singulariki.com/detailed-activities/assemble-machine-tools-parts-or-fixtures}
}