I've also noticed that most needle nosed pliers seem to work on that faucet. That is if we're talking about the one with the embedded square nub. I use my mini leatherman squirt pliers to open/close the one at work (especially since that place would lose or misplace a specialized piece of hardware, like a sillcock key, in days <img src="/images/graemlins/smile.gif" alt="" /> )
Jason