I used to carry a
Paladin PT-540 until they stopped selling it and I foolishly snapped the pliers in half trying to twist something with them. It's a modified SOG multi-tool, so it's customizable. Mine was customized with a leatherman bit holder, V-cutter, and extra wire strippers. I think the most useful thing on it was a 7/16 and 3/8 nut-driver on the outside of the handles. Man I wish I hadn't broken it. Or that paladin hadn't stopped selling it.
Currently I'm packing a leatherman Surge, but the Crunch does look awfully tempting.