A professional who tends one or more machines that cut bookmatch combs (blanks) from cardboard rolls. Responsibilities include:

• Fastens metal hub to center opening of cardboard roll with handtools and inserts turning shaft in hub.
• Pushes roll onto let-off rack.
• Threads cardboard strip into machine through guide and pressure rolls.
• Adjusts circular cutting knives that slit cardboard to specified width.
• Turns handwheel to move cutter and punch section of machine forward on track to feed combs into dip conveyor.
• Starts machine to process combs.
• Inspects combs for defects, such as insufficient punch pressure and spread, noncuts, and improper width.
• Adjusts machine with handtools to correct defects.