Gas lenses and collet bodies release a stream of shielding gas into the nozzle on a compatible TIG (tungsten inert gas) torch. The shielding gas keeps airborne contaminants out of the weld pool to help avoid pores, cracks, or excessive spatter in the weld. Each gas lens or collet body attaches between the collet and nozzle on a compatible TIG 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.
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