Requires a thorough knowledge of shop mathematics, ability to lay out, form, shape, and/or fit and assemble multi-contoured parts using such precision instruments as micrometers, calipers, dividers, dial indicators, levels, protractors, clinometers, gages and rulers, and such metal working tools as hand and powered sheers, brakes, rolls, mallets, forming blocks, hand saws, grinders, sanders, files, a wide variety of pneumatic drills, rivet guns and blind fastener tools. • Requires thorough knowledge of shop mathematics, ability to lay out, form, shape, and/or fit and assemble multi-contoured parts using such precision instruments as micrometers, calipers, dividers, dial indicators, levels, protractors, clinometers, gages and rulers, and such metal working tools as hand and powered sheers, brakes, rolls, mallets, forming blocks, hand saws, grinders, sanders, files, a wide variety of pneumatic drills, rivet guns, and blind fastener tools.