GC-200 Tweco Copper Alloy Ground ClampDurable ground clamp built with copper-cast upper and lower jaws. A heavy duty, insulated spring applies clamping force to the work surface. A rugged and reliable design provides excellent performance. Strong, ball-point screw secures the welding cable to the ground clamp. Amps: 200.00 A; Cable Capacity 2: Ball Point - 1/0; Jaw Material: Copper; Jaw Opening: 1 in; Length: 6 in; Throat Depth: 3 in; Type: Clamp; Weight: 0.82 lb.