TechniWeld Long Back Cap

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Long Back Cap with O-Ring for 3-Series (17/18/26 Style) TIG Torches. Features The purpose of a back cap is to push down onto the collet in the Tig torch head and secure the tungste n electrode firmly into place. Compatible with mainly A-150 Series, A-200 Series, W-350 Series, W-400, & W-410 Tig Torches among others. Each cap sold individually Show more