Conform to ANSI/AWS Standard A5.12M/A5.12:2009 ISO 6848:2004 MOD.Tungsten electrode diameters: 0.040" (0.5mm), 1/16" (1.6mm), 3/32" (2.4mm) and 1/8" (3.2mm); 7" (176mm) length. Ground annealed. Packages available: 10-pcs electrodes of 0.040", 1/16", 3/32" and 1/8" with different alloying assortedly packed in one box. Tungsten electrodes: Made of materials with high melting point, corrosion resistance, high density, good thermal conductivity and conductivity. To obtain high-quality welding, the correct tungsten electrode is selected to make welding easier. Some important factors to consider in making the right choice are the type of power supply (inverter or transformer), welding material (steel, aluminum or stainless steel) and material thickness.""