This product is awful. It broke on the second use. I went out of my way not to over tighten anything. There is a long partiality threaded rod (piece with the hook on it) that ends in a plastic spreader. As you tighten down rod the friction applied to the spreader causes it break lose internally and push the rod all the way through the spreader. Causing a failure. (very poor design). Something like a BB on the end of the rod would have worked. The BB would have kept the drill through effect of the rod from happening (The end of the rod is so ragged I cut my finger just trying to get the spreader back on)