The distance the electrode is recessed behind the constricting orifice of the plasma arc torch or thermal spraying gun, measured from! the outer face of the constricting nozzle. See CONTACT TUBE SETBACK.
The distance the electrode is recessed behind the constricting orifice of the plasma arc torch or thermal spraying gun, measured from! the outer face of the constricting nozzle. See CONTACT TUBE SETBACK.