I like these much better than the spring clamps we all use. It exerts more pressure with an easier release than a spring clamp of similar size. Just squeeze to lock it and it stays put. I used a couple the other day to hold a straight edge for routing dado's. I cut 3/4 x 1/2 deep runs with no slippage from the clamps. When I was done with each one I just squeezed the release and went on to the next . Lickety split. Nice idea !