A professional who sets up and operates multiple stage deburring machine to smooth edges and set (establish) width of mainspring strip. Respnsibilities include:

• Threads strip from feeding roll through deburring cutters to winding roll, aligning cutters and adjusting cutters for specified width.
• Makes trial run, cuts off piece of deburred strip, examines piece under microscope, and adjusts cutters to correct deficiencies in operation.
• Adjusts and sharpens cutters on diamond wheel, using mechanic's tools.
• Works to tolerances of 0.0005 inch.