A professional who sets up and operates semiautomatic tooth-cutting machine to shape teeth on watch escape wheels. Respnsibilities include:

• Positions stack of blanks on arbor, inserts and locks arbor in machine spindle, and starts machine which automatically stops at end of cycle.
• Removes wheel from machine and verifies dimensions of wheel diameters in ring go-not-go gauge.
• Examines wheel under toolmaker's microscope and compares its blown-up shadow with scale drawing on projector screen to determine if wheel conforms to specified tolerances.
• Adjusts machine, using handtools, to correct for size and dimensions until parts are within tolerances, or to accommodate different size wheels.
• May operate bank of milling machines.
• May be designated according to type of wheel cut as contact wheel tooth cutter.