If you fear landing in an emergency situation requiring you to loosen nuts and bolts on the go, consider the Wrex Titanium Pocket Wrench.

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Not only is the gadget conveniently sized, it packs an ultra sharp blade attached to the wrench's jaw, a wire stripping hole, a double-ended driver bit, a 1/4-inch hex bit driver with o-ring, and a bottle opener. Expect to pay $179 when it hits stores in early May. [Wrex via Uncrate]