Manufacture custom tools used in factories and plants.
Tends previously set up single- or multiple-spindle boring machines to perform machining operations, such as boring, counterboring, and facing metal workpieces on production basis: Lifts workpiece manually or with hoist and clamps it in holding fixtures. Moves machine controls to feed tool into workpiece and engage feed. Observes machine operation and verifies conformance of bored workpiece to specifications, using measuring instruments, such as fixed gauges, calipers, and micrometers. Changes worn tools, using wrenches. May move controls to adjust cutting speeds, feed rates, and depth of cut. May aid MACHINE SETTER 600.360-014 in setting up machine. May bore or drill plastics or other nonmetallic materials.