Zirconiated Ground Tungsten Electrode, 3 32 in x 7 in, 10 PK no checkout laminated steel body for superior laminated steel body for superior strength Hardened boron alloy shackles for extra cut resistance Proprietary rustproofing for longer life Commercial grade padlock features superior protection from drilling and prying Dual ball bearings locking for maximum pry resistance making it ideal for industrial applications Hard round plastic cap allows for swiveling and pivoting during continuous on the ground jobs Compression recovery 1 2 in foam padding provides firm Typically used for welding with higher AC currents on nonferrous metals Also used for high speed welding