Q: What should I do with the extra keys that came with my lock?
A: Take one of the new keys and put it in a safe place. There are several reasons for this:
If the key you use regularly is lost or stolen, you have a spare. Keys also wear with time, both from working in the lock and from contact with other objects in you pocket or purse. If you need additional copies, you will get a better reproduction if you use the unworn spare as the original.