Sets up, operates, or tends drilling machines to drill, bore, ream, mill, or countersink metal or plastic work pieces.
This career is part of the Manufacturing cluster Production pathway.
A person in this career:
- Verifies conformance of machined work to specifications, using measuring instruments, such as calipers, micrometers, or fixed or telescoping gauges.
- Studies machining instructions, job orders, or blueprints to determine dimensional or finish specifications, sequences of operations, setups, or tooling requirements.
- Moves machine controls to lower tools to workpieces and to engage automatic feeds.
- Verifies that workpiece reference lines are parallel to the axis of table rotation, using dial indicators mounted in spindles.
- Establishes zero reference points on workpieces, such as at the intersections of two edges or over hole locations.
- Changes worn cutting tools, using wrenches.
- Selects and sets cutting speeds, feed rates, depths of cuts, and cutting tools, according to machining instructions or knowledge of metal properties.
- Positions and secures workpieces on tables, using bolts, jigs, clamps, shims, or other holding devices.
- Observes drilling or boring machine operations to detect any problems.
- Lifts workpieces onto work tables either manually or with hoists or directs crane operators to lift and position workpieces.