The clarke spotcar alu automotive is a smart and effective aluminium spot welder ideal for quick repairs on aluminium bodywork microprocessor controlled operation allows the quick welding of studs m3 m6 or wavy wires to bodywork for easy dent removal the welder also features an advanced safety system allowing the capacitor to discharge only when in contact with the work piece comes supplied with gun earth cable and accessory kit accessory kit contents1 x electrode for m4 aluminium sc