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

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]