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Grinder II

Tend jigging machines that grind pivots of watch parts.

What does a Grinder II do?

Tends jigging machines that grind pivots of watch parts to specified lengths: Pulls spindle handle to open spindle, inserts pinion with tweezers, and releases handle to force pinion into place in chuck. Depresses pedal to start rotating grinding wheel across end of pivot to grind pivot to specified size. Measures pinions to ensure specified lengths, using loupe and precision upright gauge.