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TIG welding consumables are integral parts of a TIG torch that gets worn out over time. Back caps seal the torch from the atmosphere and apply pressure to the collet for holding the tungsten electrode securely. Collets and collet bodies securely fasten and transfer the electric current to the electrode. Nozzles or cups supply the intended amount of shielding gas wherein the coverage is dependent on the cup size. AIMS Industrial offers various TIG welding consumables for your gas tungsten arc welding (GTAW) requirements.