TIG (tungsten inert gas) electrodes are each inserted into a compatible TIG burner, which is then linked to a TIG welder, which provides current to the electrode. The electrode and the workpiece form an arc, and the heat from the arc melts the workpiece material to form the weld. The type of electrode used is determined by the workpiece's base material and thickness, as well as the welder's output current. TIG welding, also known as gas tungsten arc welding (GTAW), produces clean, precise welds and is perfect for welding thin materials and visible surfaces. A TIG torch setup contains a nozzle, collet body or gas lens, collet, insulators, rear cap, torch body, torch handle, and other accessories.