Mig or tig weld joints or fill holes in auto body panels or sheet metal with the help of this plug weld tool.
Position the copper pad behind the joint or hole to be welded and place magnetic base on metal. Adjust knob up or down so that copper pad is flush against the metal to be welded and weld up the hole or joint. Remove tool and grind the excess weld. Weld will not stick to copper base.