Tons of functionality. Minimal space. The Pinch Multi-Tool measures under 1.5" x .5", yet packs in a host of tools. There's a slot that lets it pull nails, one to strip wires, a miniature ruler, a 1/4" hex bit holder, a scraper, a pry bar, a hex wrench, a flat screw driver, and the requisite bottle opener. Even with all that, they found space for a keychain hole, so you don't have to worry about it getting lost in your pocket with your other EDC essentials. Crafted from titanium, so it's both rugged and lightweight, and available in Metric or US Standard versions.
Get yourself ready for camping season by picking up a set of Buck Compadre Outdoor Tools. This series of three tools includes a full tang camping knife, a hatchet designed for chopping, and a froe that's ideal for splitting logs and clearing brush. All three are made from 5160 steel, with signature red powdercoat blades and walnut handles to give them a distinct style.
Don't haul your bike to the shop when it breaks down. Carry the Crank Brothers Bike Multi-Tool with you instead. This cycling-focused tool offers 16 functions, including a CO2 inflator, a chain tool compatible with 8, 9, and 10 speeds, #0 and #1 spoke wrenches, hex wrenches ranging in size from #2 to #8, both phillips and flathead screwdrivers, and T-25 and T-10 torx bits. The various tools snap into place using magnets, and thanks to its compact design, it's easy to throw in a seat bag or hydration pack.