Cable Connector, Single Oval Point Screw Connection, Male Female, 1 0 to 2 0 AWG Cap, Black ORS NASCO Longer life than thoriated electrodes Non radioactive Longer life than thoriated electrodes Non radioactive additives Can be used in both AC and DC processes Excellent arc starting and stability Reduce amperage by 5o recalibrate from other tungsten flat on opposite Flat sides of all half round files are double cut Backs of all 4 in and 6 in files are single cut Backs of all half round second cut files are longer than 6 in are double cut Cam action design of male half connector pulls the two halves together Connector covers are molded form a special heat and cold resistant material Covers have no metal liner to rust or corrode Metal parts are precision machined with heavy specially shaped brass extrusion