These things cut through plaster like butter. A big problem that I really didn't like otherwise I would have given it 6 stars. I tightened it up, yes I roughed it up a bit, still attached to my Milwaukee drill. You know, when you're working, sometimes we tend to drop things, take other tools and things like that. And finally to business. Well bent. It wasn't round anymore. In my opinion the metal should be thicker or slightly stronger. Shouldn't be that easy to bend.