The muzzle crown tool from Brownells is working good. The more I use it the more I like it. I have only a few pilots so only can do a few of my guns. The crown on my heritage 22 pistole looked good but had light scratches on it very used gun. The crown looks very good now. The tool does leave a very slight chatter or cutting marks on the face of the cut but this can be polished out if you don’t like the look. Over all I like this tool.