Lincoln PTW-20 TIG TORCHPremium Water Cooled Torches Light and easy to use, these torches give you the power of maximum versatility and maneuverability. A molded, knurled handle gives you a sure grip so you can focus on the weld. Whether you are an occasional TIG welder, fabrication shop or production welder, Pro Torch TIG torches are right for you. Tungsten ranges from 0. 02 1 8 mm and has flexible head model that features maximum versatility and maneuverability. Features