Laaadies and gentlemens, children of all ages, survivors in this show called Life , introducing the lowly chainsaw bar wrench.
If I was pressed to choose only ONE tool to be stuck somewhere with, as much as I love my knives and all that I can do with them, it would be a tough decision....I think I'd have to choose the bar wrench.
Weighing in at a mere 2.4 OZ (80 gm) and 5 1/2" (13cm) long and costing under $10, this amazingly low tech device can make the difference between making it back or not.
I have one in my purse (gotta tell you though, I get some raised eye brows from TSA at airports, who don't quite know what to make of it as it doesn't fit any prohibited tool/weapon category...heh heh..), one in my tool bag, one in each vehicle and several in my tool chest....
(Aside) A word of explanation on how it is that I have so many: In a previous life I worked as a small engine mechanic fixing/selling chainsaws, weedeaters, mowers, generators etc. and these were a basic tool of the trade and once I recognized them for what they could do, set about collecting several...
This particular one was made by/for Husqvarna and came with all their saws (I've considered approaching them as a sponsor..heh heh) and while I can't attest to the strength or durability of other makes out there, I can say that this one is an amazingly tough, durable tool! The tip will break before it bends. I have managed to break one off at the weld, but it took some doing and I had a big screwdriver through the wrench end to give me more torque trying to pry something loose. I routinely bang on the head with a hammer to chip, chisel or pry (with SAFETY first, of course!)
In this Instructable, i'll list some of its uses, other than the obvious which are: screwdriver, 13mm (1/2") and 19mm (3/4") box wrench. It will be up to you to come up with other possible survival uses in both the urban and the wilderness environment.
My thanks to the Instructable authors I have referenced here. Keep up the good work!