Jump Liner Compatible with Series 250 Amp S-Gun MIG Gun Bernard BTB MIG Guns Dura-Flux FCAW Guns W-Gun(TM) MIG Guns Compatible with Model Q-Gun and S-Gun MIG Guns Welding Processes MIG Welding (GMAW) Maximum Wire Diameter 0.062 in Minimum Wire Diameter 0.045 in Maximum Current 150A to 600 A Overall Length 14 in Bore Diameter 15.88 in Material Steel Features Enable Quick and Easy Neck Change Out