Breech Plug Wrench for TC Encore and Omega

Had not shot my encore for a couple of years. Shot it this fall and when going through the cleaning process I could not remove the breech plug with my standard method of using a small rachet wrench. I ordered a breech plug wrench. When trying to remove the plug the wrench walls deformed and slipped on the breech plug nut. IMO the wrench is a good tool for routine maintenance, but the walls are too thin to loosen stuck breech plugs.