Technically, it has a 4-inch bead blasted partially serrated spear point VG-10 stainless steel blade. What’s that mean? It takes and keeps an edge very well, doesn’t need to be oiled, and it’s a great size for a lot of everyday tasks, as well as self-defense, if necessary.
The “spear point” feature that I mentioned means that the last 1/8-1/4 inch of the top of the blade has an edge, which could make it a dagger in some jurisdictions. I didn’t care much for the “spear point” feature. Let me rephrase that—I LOVE the spear point, but I don’t care to break the law because of 1/8th of an inch of steel, so I ground it flat and my problem was solved.
The SOG Pentagon Elite I has an opening system called Arc-Lock that is an ambidextrous nub on both sides of the knife that opens the blade a few degrees—enough so that you can flip the blade the rest of the way open. This “nub” also serves as the blade lock release, so you can disengage the lock and close the blade with a flip of your wrist as well. The nub is perfectly designed so that it’s small enough to stay out of the way, but big enough that I can easily open and close the blade one handed with gloves on.
One of the other features of the SOG Pentagon Elite I is that it sits in the pocket tip up. This means that when you’re carrying it in the back of your front pocket, the back of the pocket will keep it from opening. Since the blade is almost as long as the glass-reinforced nylon handle, even if the knife rotates in your pocket when your scrambling or rolling around, the blade will still stay closed against the pocket.
Tip up in the pocket also means that when you grab it, the orientation is correct for use and you don’t need to flip it around before using it.
The Pentagon Elite I IS relatively pricy. It’s just over $100 on Amazon and I probably would not have bought it unless someone told me just how incredible the knife is.