Manufacture custom tools used in factories and plants.
Cuts and shapes fiberglass sheet to form heating and air-conditioning ducts, using handtools: Places sheet on worktable for cutting. Measures and marks sheet according to specifications, using tape measure and marker. Cuts wedge shaped grooves according to marking to facilitate folding, using straightedge and knife. Folds sheet to form rectangular duct and fastens open edge of duct, using pneumatic stapler. Cuts aluminum tape according to length of duct and tapes edge of duct to make air tight seal. Writes model number on completed sections of duct with felt pen. Moves ducts to designated storage area.