I have never like those clamps they slip off the work easily, also not real crazy about the way the ground attaches to that clamp. Here is an 800 amp battery jumper cable clamp that replaced the one the welder was shipped with. Ground has a soldered lug that bolts to the clamp, tuff design. Hangs onto the work, has a bite like an alligator. Shot it next to the torch for a size referance,
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