My nearly new Kreg K5 jig was sticking with the clamp handle in the up position. I could not get it to go back down without tapping it with a hammer. I called Kreg customer service and, after a short diagnostic conversation, the representative said that a rivet was likely not aligned properly and he would send out a new unit. He asked where I bought the jig and I said either from Kreg or Amazon, but I honestly didn't remember which. He said it didn't matter. The call was on a Friday and he said I should have the jig by the following Tuesday or Wednesday. I actually received it Monday. Just wanted to give them some online appreciation for treating their customers well.