Gerber 30-000637 GDC Hook Knife
"No one doubts keys’ usefulness--they start cars, get you in and out of places and keep your stuff, well, yours. But to really elevate their role, the Gerber Daily Carry Hook Knife adds lifesaving potential, in the form of a reliable, easy-to-access blade that’s always in arm’s reach. A True Utility Blade: The idea behind this 2-inch stainless steel hook blade is simple: create an ultra-stealthy knife that lives on a keychain and can be used to quickly cut yourself out of a piece of clothing, seatbelt or other safety strap, should you ever get stuck in a tight spot. You’ll also find lots of ways to use the knife for many of life’s little non-emergencies. At home, put it to use opening a box or an envelope. Out in the field it’s great for small tasks like cutting fishing line, trimming a tarp or opening a package of freeze-dried food.  A Safe Grip: Wrap your finger around the ring, press your thumb against the thumb grip and you’ve got a solid hold that won’t budge when you put a bit of power behind a cut. When you’re done, the blade snaps back into its sturdy, safe sheath."