Job Description:

• 1) Operates lathe to turn edges of partially processed jewel bearings: Chips edges of ground sapphires to approach disk shape, using chisel and hammer.

• 2) Mounts bearing in chuck of lathe.

• 3) Starts lathe and presses diamond cutter against circumference of bearing.

• 4) Examines shaped bearing, using magnifying glass and dial micrometers, to ensure conformance with specifications.