Pinch Multi-Tool
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.