This guitar knob has a nice smooth feel and is great as a control knob. This guitar knob will work for volume and tone control on your guitar or bass. It is designed to fit any potentiometer up to 1/4” diameter. It is designed to self tap with a 6-32 set screw, if the part is ordered in plastic. If the part is made out of metal you may need a 6-32 tap. This is a great original design for any electric guitar or bass guitar.