I just picked up one of these tools, for disassembly of a Ruger SA revolver. I'm no gunsmith, and don't like disassembling my Rugers and I need needle nose pliers as my fingers and hands are too big. Having a small punch shoot across the room, or a little screw driver fly out, is not my idea of fun. This little tool makes it extremely easy to disassemble and reassemble the spring. This tool has been out for a while I guess, but I just found it, and I'm sure there's others that would really love this little item. Go to the RW Gripframes sight and watch the short video. It's that easy!