The one I needed the most to remove the 3/8" bolts broke in two on me. I had to complete the holes with a 100+ year old Russell-Jennings snaffle and brace (significantly newer) I may have put a little lateral tension on it but if it was minimal I've made a few dozen holes at this point so maybe for the dollars I really don't have to complain. I guess they just don't make them like they used to."