OK, here's a mini-review. Following Big Al's advice, I bought several of the 5 hole pentagon hydrant wrenches he hot-linked. They are the bomb! A flat, (painted?) iron wrench, about 14.25in. long, weighing ~2 lb.s. Tried it on a local hydrant for fit only and it fit all the wrench points. One end is a fire hose coupling wrench and smll hammer head. That end also forms a grip or handle. I imagine that you might have to hammer it a little to get a balky valve open, but it appears up to the task. With this and a 4-way silcock wrench, I believe that you can keep yourself supplied with water in any urban or suburban bug-out. Its too heavy for EDC, but in a car/office/home kit, its a valueable addition. It even might have some self-defense potential. All in all, methinks its about to become a new standard tool in urban kit.