7222-Toolmakers and related workers

Tasks include

• reading and interpreting engineering drawings and specifications of tools, dies, prototypes or models
• preparing templates and sketches, and determining work processes
• visualizing and computing dimensions, sizes, shapes, and tolerances of assemblies, based on specifications
• positioning, securing and measuring metal stock or castings to lay out for machining
• setting up, operating and maintaining conventional and computer numerically controlled machine tools to cut, turn, mill, plane, drill, bore, grind or otherwise shape work piece to prescribed dimensions and finish
• fitting and assembling parts to make and repair jigs, fixtures and gauges
• repairing and modifying sports guns and other small arms
• making, fitting, assembling, repairing and installing lock parts and locks
• making and repairing metal patterns for preparation of foundry moulds
• laying out lines and reference points on metal stock to guide other workers who cut, turn, mill, grind or otherwise shape metal
• verifying dimensions, alignments, and clearances of finished parts for conformance to specifications, using precision measuring instruments and testing completed items for proper operation.