Genuine Kjellberg F2227 nozzle for high-current mechanised plasma cutting of mild steel at 300 A, suited to thicker plate. The nozzle's precision orifice constricts and focuses the plasma arc into a narrow, high-energy jet. A nozzle in good condition gives a narrow kerf, square edges and minimal dross; replace it when the orifice is worn, out of round or damaged. Use with the matching 300 A cathode.