This is my EDC knife. Its a Cold Steel, My Brother gave it to me when i was 16, its been in my purse ever since. Im not sure how long he had it, but i know its gotten us both out of a few jams....Thick enough to use as a pry bar, and holds a razor edge. The steel is carbon5, which according to the very informative link, could mean just about anything.
The Founders DID anticipate that arms technology would advance, that's why the 2nd amendment doesn't say "the right to keep and bear a musket".......