The Campbell Hausfeld Pro-140 120V MIG/FLUX Welder can be used for all types of metal fabrication. 120V MIG-ready wire welder. 5 heat settings for precise adjustment to the thickness of your metal. Professional cold torch with trigger activated arc allows precise weld placement, and the quick-connect adapter makes it easy to replace. 140 Amp maximum output allows for weld sizes 24-gauge to 1/4-Inch. Large capacitor creates a smoother arc for welding, making it better for aluminum. Thermal overload protection automatically shuts off to avoid overheating. Dual gauge regulator and hose are included, allowing tank pressure to be read, while also reading the pressure flow through the unit.