A survival knife is your best friend. A quality survival knife makes all the difference in surviving and getting things done. And if there is one piece of equipment that you can't do without, it is a quality knife to take with you. If you don't already have an everyday carry knife that you keep on you at all times, you should invest in one.
None of the knives on this page qualify as a good EDC knife, but are utility knives you can use for performing light tasks. A pair of pliers for gripping your can out of the fire, scissors for fine cutting, and other tools you can put to good use.