Item number: AR1893Product description:This kit fits all 9 series air cooled torches and 20 series water cooled torches and 25 series water cooled torches, including the Lincoln PTA-9 and PTA-20 PTA-25 torches, Miller Diamondback DB9 and DB 20 DB26 torches, along with the Weld craft WP-9 and WP-20 WP-25 torchesthe torch back cap thread size 5/16inFeature :Lanthanated tungsten electrode, with good welding performanceRegion free and easy to use, can be used for WP-9 WP-20 WP-25 TIG Welding TorchApplicable to Machine such as Rilon, Riland, Jasic, Mitech, Chiry, UNT, Krypton, Longetivity, Berlan and so onIts electric conductivity is most closed to 2% thoriated tungsten electrode at either AC or DC, and no need any welding program changesPackage included:46Pcs TIG Gas Lens Collet Body( As Shown In The Picture)