A professional who tends edging machine that automatically pencil edges circular mirrors or glass used as table tops. Responsibilities include:

• Places template over workpiece and marks center of workpiece, using red pencil.
• Moves switch levers to start suction pump and circle edging machine and turns valve to start flow of water to edging wheels.
• Centers workpiece on suction cup of edging machine and depresses pedal to activate suction cup that locks workpiece into place.
• Raises foot-controlled lever to engage motorized edging wheels to edge of workpiece and presses button to start revolving of workpiece against edging wheels to form pencil edge on workpiece.
• Observes pencil edging process to ensure specified dimensions and to prevent breakage of workpiece caused by improper setting of motorized edging wheels.
• Turns bolts to loosen motors, using wrench, and slides motors on tracks to correct setting.
• Feels edge of mirror or glass to verify smoothness.
• Removes workpiece from suction cup when edging is complete and places workpiece on rack.