pads on clamps get worn out and eventually fray out wards and they drop off I made some swivelling clamp pads to fix on to the ball joint plus this also spreads out the pressure and does not mark the wood when tightening the clamp and the pad still moves around on the ball joint.
This is handy if your picked up some cheap c clamps that was broken with a quick fix you can save a bit of money!
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