Confession time:  whenever a new multi-tool hits the market an irresistible compulsion forces me to get it.  Of all the ones out there, this is hands-down the best, in my opinion.  It contains components for every situation, from a woodsaw to a set of screwdrivers to powerful gear-driven pliers to scissors that really work, as well as the requisite saw, files, etc.  In addition to aforementioned gears which generate force to  make the tool work like a pocket monkey wrench all components "double-lock" with a sheet metal foldover that works in addition to the standard locking system) to insure the saw, knife or file don't close over your fingers.  I also admit I take a power plier whenever I'm out (survivalist Rule # 7: "The farther you are from (home)base, the larger and stronger the tool you may need - JUST IN CASE").  Since by definition crises are unexpected, (otherwise you'd pack a machete, a filled tool box, etc) I carry one on drives both long and short).  Unless you've visited a flawless psychic recently who's warned you of disaster, you're better off just automatically carrying your tool kit in your pocket or on your belt. Having worked as a New York State clinical inspector for years, I appreciated knowing I had at least one piece of quality equipment I knew I could count on, no matter what the emergency. These days I've seen citizens from all walks of life wearing heavy duty multi-tools, from Leatherman to SOG to SPYDERCO.  In this era of women's equality, especially in nontraditional jobs, I've seen several ladies wearing one on their belts too.  The safety of locking components, coupled with the significant torque generated by the gear-driven plier system, makes this the one tool you should take automatically along with your keys when you leave the house.  (If I go to a dressier affair I can still carry the diminutive but strong Crossgrip without drawing strange looks.)