I didn't keep them, but they deserve a good rating for innovation. These keys were beautiful. BUT. They don't replace a punch and a set of good sockets designed to take it. If something is rounded but can otherwise be removed with a hand tool, great. If you really try to put pressure on one of them, you'll break their teeth. Don't even think about hitting the sides with a hammer/mallet, they aren't strong enough to withstand violence. Personally, I don't think I've ever twisted a screw that was