ITEM NAME:Thoriated Tungsten Electrode 1.6 x 150 mm H7T4 Thoriated Tungsten Electrode 1.6 x 150 mm H7T4 These are the most widely used welding material Provide excellent resistance from weld pool contamination and offers the welder easier arc starting capabilities and a more stable arc Generally used for DC electrode negative or straight polarity applications such as carbon & stainless steels, nickel alloys and titanium Material: Tungsten steel Oxide Color: Red Size ( Dia. x L ): Approx. 1.6 x 150 mm Package Includes: 10 x Tungsten electrode Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.