The picture below is of 2 different Eagle & 2 different Corbin clasp locks. To my surprise, I found that any of their keys will also work any of the other 3 locks. All the locks have a single lever tumbler and don’t have an embossed key number on the lock’s body. I don’t know what they may have been mounted on, but I’ll bet it wasn’t a machinist tool chest.
I should never have bought them, but that’s how you learn. Just a word of caution…………..