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Approx. 100 / Onwards Get Latest PricePure Tungsten Rods are without any presence of oxides like thorium or cerium. They are best for AC welds that can perform best at lower amperages and current flow. They are ideal for thin metal application. They provide greater arc stability due to their smooth ball end and reduce the chances of contamination while welding. They have a high requirement for voltage for arc deviation and thus are reliable for stable arc under low voltage.