I wasnt saying the knob and guitar were one piece. Look at the size of the hole on the body, its just big enough for the shaft to fit through. Now if the pot and knob were one peice, how does it go through that hole? It cant be one peice, the pot is inserted through the hole from the inside and the knob is pressed on from the top. Two seperate pieces. I have had some that were so tight, that like others have experienced, the knob broke while trying to pry it off.