Binzel Gas Nozzle (Welding accessories) MIG15 : 9.5/12/16mm;spot welding 16mm;tapered 13mm MIG24/240 : 17/12.5/10mm;spot welding MIG25 : 11/15/18mm;tapered 11/14mm;spot welding 18mm MIG26/400/500 : 16/14/19mm;adjusted tapered 15mm;spot welding 20mm MIG36 : 12/16/19mm;spot welding 20mm