re: Harbor freight clamps and clamps in general

I use these clamps as shown in the picture but are made by silverline in the uk. They are great for clamping many lengths of solid materials. Not so good for clamping many boards together for a table top as the clamps start to curve at long clamping lengths. The top slider seems to crab up and jam on most uses meaning you have to keep backing off and re tightening. The most annoying thing about these clamps though is the little rubber caps they put on the handle to stop the bar falling out. They pop off really easily and the bar falls out.
They are cheap and none have failed on me, they’re just fiddly.