Job Description Job Description Job Description: Set up and operate fabricating machines, such as shears, brakes, bending rolls, and punch and drill presses to cut, bend, and straighten sheet metal. Use spot welders, hand-held power tools, air hammers and hand tools to assemble duct work and other sheet metal assemblies. Install duct work and sheet metal assemblies on work site according to blue prints and specifications using hand tools and portable power tools. Install air moving equipment, s…