Tweco GC-600-50 Copper Ground Clamp 500A

Get a Grip on Your Ground

Every welder knows that a bad ground leads to a bad weld. Sputtering arcs, wandering puddles, and inconsistent starts are often traced back to a cheap or worn-out work clamp. The Tweco GC-600-50 is built to solve those problems and keep you welding smoothly. This isn't a flimsy stamped steel clamp; it's a solid copper alloy beast designed to handle up to 500 amps of current without breaking a sweat. When you clamp this onto your workpiece, you can feel the quality in the heavy-duty spring tension—it bites down hard and stays put.

The copper construction isn't just for looks; it keeps the clamp running cool even when you're pushing high amps all day. We've all dealt with clamps that get so hot they melt the cable insulation or burn your gloves—the GC-600-50 is designed to avoid that by maximizing conductivity. The jaws open up to 2-1/2 inches, giving you plenty of room to grab onto thick plate, table edges, or structural steel. Plus, the throat depth of 1-3/8 inches means you can get a secure bite, not just a tip contact that slips off the moment you drag the cable.

Setting it up is straightforward. The cable connects via a rugged ball-point screw that locks the strands down tight, ensuring you don't lose power at the connection point. Whether you are running Stick, MIG, or Flux-Cored wire, a solid ground is the foundation of a good bead. Upgrade your lead set with the Tweco GC-600-50 and stop fighting your equipment. It’s a rugged, reliable tool that earns its place in any serious welder's rig.