So yes, it's unlikely that the uninitiated tool maker such as myself would be able to manufacture a hardened and tempered tool in the wild, though I could sharpen it. Instead, I would be much more likely to attempt to create some form of natural tool from stone or make do some other way. However, the skilled craftsman should be able to make a perfectly serviceable knife, axe, machete, or other cutting tool from components of, say, a plane. So here is my question ... you are stranded in the middle of nowhere and have arrived by some form of mechanical vehicle. All the emergency lark is out the way and you decide to try to make a cutting tool. Let us assume there is no suitable starting tool in the tool kit, but there are some basics like a hacksaw and pliers. The vehicle will not start, but the battery is sound. Nothing in the vehicle is damaged but you can get away with bits of metal being a bit loose or twisted it you like. How would you go about it?