Tweco GC-200 Cub Copper Ground Clamp 200A

Don't Let a Bad Ground Ruin Your Weld

We've all been there: you pull the trigger or strike an arc, and all you get is sputtering, popping, and a cold weld. More often than not, the culprit is a poor ground connection. Upgrade your setup with the legendary Tweco GC-200 "Cub" Ground Clamp. Known in the industry as a workhorse for light to medium-duty welding, this 200-amp clamp is built to give you the solid contact you need for smooth, buttery welds every time.

Why Copper Matters
Cheap steel clamps heat up and steal power from your arc. The Tweco GC-200 is made from a premium copper alloy (98% copper) which means electricity flows through it with almost zero resistance. This keeps the clamp cooler and ensures all the power from your machine actually makes it to your puddle. Whether you are MIG welding in the garage or TIG welding on a bench, this clamp delivers the consistency you need.

Built Tough for the Shop
The "Cub" might be compact, but it isn't weak. It features a powerful spring that clamps down hard, biting through surface contaminants to find clean metal. The jaw opens up to 1 inch, making it perfect for clamping onto tables, flanges, or directly onto your workpiece. Plus, the compact size means it won't get in your way when you're working in tight corners or on smaller projects.

Easy Installation
Hooking up your cable is a breeze thanks to Tweco's smart ball-point connection. It secures your welding cable (fitting sizes up to 2/0) without crushing the copper strands, ensuring a connection that stays tight even after hundreds of heat cycles. Stop fighting with cheap clamps and get a grip with Tweco.