Volume or tone potentiometer for bass or electric guitar This potentiometer is ideal for instruments with humbuckers pickups or single coils. CTS has been used on countless electric guitars since Fender began using them in the early 1960s. Split shaft for snap adjustment knobs. Each CTS includes a lock washer and a hex mounting nut. Measurements: Total depth of pot: 30 mm Threaded shaft length - 9 mm Shaft diameter: 9.5 mm Diameter of pot meter - 23.5 mm