Features FINELY WORKMANSHIP:The pure tungsten electrode is the most commonly used electrode in TIG welding and features low resistance, good electrical conductivity and low thermal expansion. It is commonly used for AC welding. Wide application: mainly used for AC welding of alloys, magnesium aluminum and their alloys. Exquisite configuration: provide 9 sizes of pure tungsten electrodes to meet your different needs. Excellent Performance The pure tungsten electrode contains at least 99.5% tungsten with excellent performance in terms of conductivity and durability. Practicality: Non-radioactive tungsten electrode without contamination. With low combustion speed and good arc stability. Specification: Model: WP Material: Tungsten Quantity: 10 pieces. Welding current: 250-400A Tip colour: green. 1.0 x 150 mm / 0.04 x 5.91 inches. 1.6 x 150 mm / 0.06 x 5.91 inches. 2.0 x 150 mm / 0.08 x 5.91 inches. 2.4 x 150 mm / 0.09 x 5.91 inches. 3.2 x 150 mm / 0.13 x 5.91 inches. 1.0 x 175 mm / 0.04 x 6.89 inches. 1.6 x 175 mm / 0.06 x 6.89 inches. 2.0 x 175 mm / 0.08 x 6.89 inches. 2.4 x 175 mm / 0.09 x 6.89 inches. 3.2 x 175 mm/0.13 x 6.89 inches. Weight: approx. 50 - 280 g / 1.8 - 9.9 oz. Package list: 10 x pure tungsten electrodes. Note: Please allow slight errors due to manual measurement. Thank you for your understanding. Package List