Tweco 9205-1250 SGC-500 Steel Lever Welding Ground Clamp, 500-Amp Capacity 500-amp capacity Can be used in stick welding, submerged arc welding, gas metal arc welding and gas tungsten arc welding applications For light and medium duty metal fabrication Heavy-duty spring for clamping force to the work surface Ball point screw secures the welding cable to the ground clamp