I had high hopes for this bit, but in my circumstances it didn't work very well. I thought the curved end would help get under the tile and it does, but that's the problem. It crawls under the tile until it's stuck. It doesn't effectively break up the tile or pop it from the thinset. I understand my experience may be unique. I have 12" tile mounted with thinset on an unknown brand of fiberous backing, which is not thinsetted to the subfloor. I have found the thickest chisel works best. Currently, I'm using a cheap one from a local store with great success.
Just used 10 of these to remove all of the tile from 2 balconies on a high rise job so we could re tile them, they worked great did loose edge fairly fast but we were able to resharpen they just don't last as long as the factory edge when you resharpen, still the best i have found at a decent price.