LINCOLN ELECTRIC MAGNUM GROUND CLAMP
Easy operation. Just squeeze, slip jaws over the work and let go. No bolts or nuts to tighten. Jaws open full 2-1/2 in (63 mm). Welding cable lug bolts directly to the work clamp. Heavy spring tightly clamps jaws to work or table. Rated 300 amps at 60% duty cycle.