Is this what you are talking about
:
http://www.amazon.com/Ratcheting-Ter.../dp/B0027K7AS6? We have some that look just like them that we got at Fry's. It creates incredible crimps, I've used all the other tools described here and I never get as nice and strong of crimps as I do from this tool. When we first got it, it didn't seem to crimp quite enough, so I adjusted the limit, and since then I've never had a crimp fail that had the right size wire fully inserted into the correct size terminal.