TIG Alumina Nozzle Gas Lens Collets Bodies Gasket Cup Back Caps Assorted Size Fit PTA DB SR 9 20 25 TIG Welding Torch 18pcs Fit SR PDA DB WP 9 20 25 TIG Welding Torch 5pcs TIG Alumina Nozzle Gas Lens Ceramic Cup 4pcs TIG Gas Lens Collets Body 5pcs TIG Collets 3pcs TIG back cap and 1pcs Gasket Cup Inset back insulator