Analyzes a variety of specifications, lays out metal stock, sets up and operates machine tools, and fits and assembles parts to fabricate or repair cutting tools, jigs, fixtures, and gauges while applying knowledge of tool design, shop mathematics, metal properties, layout, machining, and assembly procedures. 3. Sets-up and operates machine tools, such as lathe, milling machine, shaper, and grinder to machine parts to specifications, and verifies conformance of machine parts to specifications.