A professional who fits and assembles components according to assembly blueprints, manuals, engineering memos, sketches, and knowledge of machine construction to construct, rebuild, and repair machines and equipment, using handtools and power tools. Respnsibilities include:

• Analyzes assembly blueprint and specifications manual, and plans machine building operations.
• Verifies conformance of parts to stock list and blueprints, using measuring instruments, such as calipers, gauges, and micrometers.
• Lays out hole locations and drills and taps holes on parts for assembly.
• Aligns components for assembly, manually or with hoist, and bolts, screws, dowels, welds, or rivets parts together, using handtools, rivet gun, and welding equipment, or arranges for assembly by welder and electrician.
• Brushes blue pigment on parts and mates them to detect high spots on surfaces.
• Removes high spots, and smooths surfaces, using chisels, scrapers, files, and powered hand grinder.
• Verifies alignment and tolerances of moving parts, using measuring instruments, such as dial indicators and thickness gauges.
• Tests operation of assembly by hand.
• Assembles, sets up, and operates machine to verify functioning, machine capabilities, and conformance to customer's specifications.
• May form and fasten piping, fixtures, and attachments required to service machine with air, water, and oil.
• May install wiring and electrical components to specifications.
• May work as member of team on limited part of fabrication process.
• May set up and operate metalworking machines to shape parts.
• May be designated according to type of machine or machine component as fixture builder.