Tend cupping machines that cut and polish oilcups in jewel bearings.
What does a Jewel Cupping Machine Operator do?
Tends cupping machine that cuts and polishes oilcups in jewel bearings: Depresses pedal to open chuck, inserts jewel with tweezers, and releases pedal to clamp jewel in place. Lowers head holding diamond and borax broaching tool to working position, starts machine, and loads other machines. Removes finished jewel when machine automatically stops. Examines cupped jewels for correctness of cut. Verifies dimensions of recess on upright gauge.