Review on Adjustable Carpenter Engineering Framing Woodworking Tools by Martin Alvarez

They're cheap and flimsy, but they'll hold your parts together if they're 3/4 inch thick or less. I've only used them once to hold together pieces of 3/4" oak that are 6 feet long and 3" wide and I figured I'd break them by squeezing the spring to make it expand open enough to put them on. wood 3/4 inch. I don't think they will last very long but I don't think you can expect much for the price.