I use mine every day. They work great. In a single gang box you have to strip before you put the wire in, but in 2 gang or bigger you can do it inside the box. great in panels too. Make sure to get the one that does both 12-2, and 14-2. I talked to a Klein rep. at my supply hose awhile ago and he said they were going to release a pair with a offset tip so you could get into tighter areas.