Use your MIG welder together with our Spot Welding Kit to produce professional spot welds without the need for a large resistance welder. Duplicate full-penetration spot welds from one side with your existing MIG welder ( fits Tweco style torches only ). The Spot Weld Pliers have forked jaws to secure the spot nozzle, offering full penetration on the back side of the weld. Spot Weld Nozzle has \"leg extensions\" to create the exact standoff distance required for spot welding of 1mm and 1.2mm steel. Read \" How To Create Factory-Like Spot Welds with Your MIG Welder \" from Technical Articles to see how to use the kit.