I first ordered two of these clamps - one was perfect but the other had a bent screw. All defects were the same - a bent screw on the right side, leading to displacement of the jaws. I have several Irwin tools and they are all very good quality. So I was surprised that 4 out of the 5 clips I received were defective. The only working clamp is a well made tool at a reasonable price. If all the clips were of this quality it would be a 5 star rating. Unfortunately, the 80% rejection rate I've experienced and the numerous reviews reporting defects as far back as 8 years ago STRONGLY advise me NOT TO BUY THIS TOOL. PS: I would like to thank Amazon for the excellent service and support during this frustrating exercise. They quickly sent me a replacement and did everything that could be expected to resolve the situation.