as Gareth said, st300 is great for outdoor and for me (st200 i have) rescue missions.A piece of heavy metal with nothing to loose, mighty, sturdy and invincible.you can use it as a hammer and dig your way out of a concrete wall or you can cut the hood of a car.
I always have a tool (actually, usually a belt knife, a Swiss Army Knife, and a Leatherman) with at least a knife, awl, saw, scissors, and pliers between them. The Supertool 300 has most of those in one package, which is kind of cool.