Job Description:

• 1) Laps and polishes bores of diamond wire drawing dies to specified dimensions: Positions die in holding device of machine.

• 2) Inserts steel needle in machine spindle, positions needle inside bore of die and starts machine which rotates needle in bore.

• 3) Dabs progressively finer diamond-dust paste or solution on needle during lapping operation.

• 4) Pulls specified gauge wire through bore and measures wire with micrometer to verify bore dimension.

• 5) Inspects bore of die for cracks and other defects, using magnifying glass or microscope.

• 6) Replaces worn needles and sharpens points on grinder.

• 7) May insert and press hand lapping tool in bore of rotating die.

• 8) May drill initial bore, using diamond drills.