Description: Produced with gray head, smooth, standard characteristics, our blue tungsten electrodes are easy to operate and ignite the arc. Meanwhile, they are equipped with a dedicated storage box for easy storage and carrying. Featuring selected materials and excellent craftsmanship, which make them uniformity, wear-resistant and have high temperature resistant, no radiation characteristics. These blue tungsten electrodes are made of lanthanum tungsten which make them durable. The length of these blue tungsten electrodes is 17.5cm. It is suitable for welding aluminum, aluminum alloy, carbon steel, stainless steel, silicon copper, copper, bronze, titanium and other materials. Item Name: Blue Tungsten Electrodes Material: Lanthanum Tungsten Features: High Density, Professional, Sturdy Core diameter: 1.6mm, 2.0mm, 2.4mm, 3.0mm, 3.2mm Welding Current: 15A-500A Size Details: Length: 17.5cm/6.89" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 10 x Blue Tungsten Electrodes