2% Thoriated 1/8 TungstenThis tungsten is the most common tungsten currently being used with Longevity DC TIG. It is generally utilized for DC welding of mild steel, bronze, and stainless steel and basically all metals, except aluminum, and offers excellent performance. A welder's best friend, this Red 2% thoriated 1 8" x 7" TIG welding tungsten electrodes will help you get the job done. Engineered to exact specifications, you can count on these long lasting electrodes to