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DOT Code: 715.682-022

Industry: clock & watch

Operates powered horizontal tapping machine to cut internal threads in screw holes around periphery of watch balance wheel: Places center hole of balance wheel over protruding pin of machine chuck. Turns wheel to align hole with tap and presses handle to starts tap forward into hole. Verifies size of holes, using precision plug gauge. Replaces worn taps.

GOE: 06.02.02 STRENGTH: L GED: R3 M2 L2 SVP: 3 DLU: 77