To suit all 17/18/26 type TIG torches, these back caps are designed to put pressure on the collet holding the electrode whilst welding, in order to reduce the risk of the electrode shorting out._x000D_ _x000D_ _x000D_ Features and Benefits_x000D_ Aids in preventing the tungsten electrode from shorting out_x000D_ Available in two sizes to suit your needs_x000D_ Simple yet effective insulator to hold the electrode in place whilst welding_x000D_ _x000D_ _x000D_ Typical Applications_x000D_ TIG welding_x000D_ _x000D_ _x000D_ Notes_x000D_ Please note images of products are for representation purposes only. Whilst every care is taken to provide accurate images of products, actual products may differ slightly