I was helping a pile of young employees assemble bikes for our military kid christmas bike drive yesterday, and one of the guys had this cool little S-shaped allen wrench, like this, but 6mm on one end, and 5mm on the other. One of our tasks on every bike is to put in a threaded stem with a 6mm top bolt. This little S-shaped jobbie made it super easy to spin that thing in. I'd like to find one (even of poor quality), but eBay doesn't seem to have them. Any idea what else they might be called other than "s-shaped allen"?