A professional who fits together components of fabricated metal products, such as boxes, shells, and frames, for window sashes, doors, bicycles, and tubular furniture to prepare them for welding, brazing, or assembly. Responsibilities include:

• Positions parts into fixture or frame, examines alignment visually, or verifies alignment, using square, rule, and template.
• Files and grinds to remove burrs or alter shape.
• Straightens part by hammering or using straightening press.
• Secures part to fixture or fastens parts together, using clamps.