If you’re smart about how you plan out your EDC, then you know one thing: you can never have enough usefulness out of every single object on your person. That being said, self-defense is one of the root reasons behind why people carry EDC. If you’re always waiting for something to happen, for someone to strike, you’re not alone. It’s a scary world out there, and you can never be too prepared. Keychain knives are useful because they’re the last thing that an assailant would ever expect. Apart from being great in a pinch, especially if you’re in the carport late at night and you want to remain anonymous in your defensive techniques, it’s a great multitool.\r