TIG (tungsten inert gas) torch handles attach to compatible TIG torch bodies to create TIG torches. They are commonly used to replace existing handles on a torch. A complete TIG torch setup includes a nozzle, collet body or gas lens, collet, insulators, back cap, torch body, torch handle, and tungsten electrode. The TIG torch should have a maximum amperage rating that meets or exceeds the maximum amperage rating of the welder.