Smooth metal surfaces or edges.

Smooth metal surfaces or edges. is a detailed work activity in O*NET — a concrete unit of work shared across 15 occupations and seen in 18 occupation-specific tasks. It rolls up into the broader work activity Smooth surfaces of objects or equipment. 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 18 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.

• Clean and smooth molds, cores, and core boxes, and repair surface imperfections. · Foundry Mold and Coremakers · importance 4.7 · no direct exposure
• Grind, sand, clean, or polish objects or parts to correct defects or to prepare surfaces for further finishing, using hand tools and power tools. · Grinding and Polishing Workers, Hand · importance 4.5 · no direct exposure
• Smooth soldered joints and rough spots, using hand files and emery paper, and polish smoothed areas with polishing wheels or buffing wire. · Jewelers and Precious Stone and Metal Workers · importance 4.5 · no direct exposure
• Cut and file pieces of jewelry such as rings, brooches, bracelets, and lockets. · Jewelers and Precious Stone and Metal Workers · importance 4.4 · no direct exposure
• File or finish surfaces of workpieces, using prescribed hand tools. · Tool Grinders, Filers, and Sharpeners · importance 4.2 · no direct exposure
• Remove rough spots and smooth surfaces to fit, trim, or clean parts, using hand tools or power tools. · Engine and Other Machine Assemblers · importance 4.2 · no direct exposure
• File, grind, shim, and adjust different parts to properly fit them together. · Tool and Die Makers · importance 4.0 · no direct exposure
• Grind, file, and sand parts to finished dimensions. · Model Makers, Metal and Plastic · importance 4.0 · no direct exposure
• Remove burrs, sharp edges, rust, or scale from workpieces, using files, hand grinders, wire brushes, or power tools. · Multiple Machine Tool Setters, Operators, and Tenders, Metal and Plastic · importance 4.0 · no direct exposure
• Smooth and polish flat and contoured surfaces of parts or tools, using scrapers, abrasive stones, files, emery cloths, or power grinders. · Tool and Die Makers · importance 4.0 · no direct exposure
• Remove defects, such as chips, burrs, or lap corroded or pitted surfaces. · Inspectors, Testers, Sorters, Samplers, and Weighers · importance 3.9 · no direct exposure
• Smooth surfaces of molds, using scraping tools or sandpaper. · Molders, Shapers, and Casters, Except Metal and Plastic · importance 3.7 · no direct exposure
• Smooth and clean inner surfaces of molds, using brushes, scrapers, air hoses, or grinding wheels, and fill imperfections with refractory material. · Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic · importance 3.6 · no direct exposure
• Remove high spots and cut bevels, using hand files, portable grinders, and cutting torches. · Structural Metal Fabricators and Fitters · importance 3.6 · no direct exposure
• Clean and finish patterns or templates, using emery cloths, files, scrapers, and power grinders. · Patternmakers, Metal and Plastic · importance 3.5 · no direct exposure
• Smooth workpiece edges and fix taps, tubes, and valves. · Structural Metal Fabricators and Fitters · importance 3.5 · no direct exposure
• Grind out burrs or sharp edges, using portable grinders, speed lathes, or polishing jacks. · Cutting, Punching, and Press Machine Setters, Operators, and Tenders, Metal and Plastic · importance 3.4 · no direct exposure
• Fill small dents or scratches with body fillers and smooth surfaces to prepare for painting. · Coating, Painting, and Spraying Machine Setters, Operators, and Tenders · no direct exposure

Occupations that perform this

• Foundry Mold and Coremakers
• Grinding and Polishing Workers, Hand
• Jewelers and Precious Stone and Metal Workers
• Tool Grinders, Filers, and Sharpeners
• Engine and Other Machine Assemblers
• Tool and Die Makers
• Model Makers, Metal and Plastic
• Multiple Machine Tool Setters, Operators, and Tenders, Metal and Plastic
• Inspectors, Testers, Sorters, Samplers, and Weighers
• Molders, Shapers, and Casters, Except Metal and Plastic
• Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic
• Structural Metal Fabricators and Fitters
• Patternmakers, Metal and Plastic
• Cutting, Punching, and Press Machine Setters, Operators, and Tenders, Metal and Plastic
• Coating, Painting, and Spraying 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-smooth-metal-surfaces-or-edges,
  title  = {Smooth metal surfaces or edges.},
  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/smooth-metal-surfaces-or-edges}
}