Everlast Poweri-MIG 140E MIG Welder, 110/120-volt, Green IGBT INVERTER / CAST ALLOY DRIVER ROLLER / 135A/21V at 35% Duty Cycle/40 C Spool Gun READY / Drive Roll wire size: .023"-.030" / Tweco Style Gun Stepless control of both the wire speed and voltage. No tapped settings Designed to be used with both 4" and 8" Wire Spools Standard drive rolls can feed .023"-.030" Wire diameter