A professional who tends machine that checkers (series of crosslike grooves) stock or grip of guns for decorative and gripping purposes. Responsibilities include:

• Places stock or wooden forepiece of gun in special holding device of machine.
• Starts machine that cuts checks (similar to knurling) in wood.
• Inspects checkered portions to ensure that machine is cutting as specified.
• May adjust checkering machine to correct checkering impression made on gun stocks and forearm, using wrenches.