TIG Gas Lens Collet Body Consumables Kit Fit QQ300 PTA DB SR WP 17 18 26 TIG Welding Torch 51pcs This Gas lens & Collet kits fits all 17 & 26 series air cooled torches and 18 series water cooled torches, including the Lincoln PTA-17, PTA-18 and PTA-26 torches, Miller Diamondback DB17,DB18 and DB 26 torches, along with the Weld craft WP-17, WP-18 and WP-26 torches 20pcs TIG Alumina Nozzle Ceramic Cup 10pcs TIG Collets & 10pcs TIG Collet Bodies 8pcs TIG Gas Lens Collet Bodies 3pcs TIG back cap and 2pcs Cup Gasket