Making a spare key for your garage door, mailbox or any other utility lock involves you dragging yourself to the hardware store and still never really figure out how to make on your own. So, if you are ever fed up with the idea of duplicating keys from others and thus giving them blueprints for your places under lock-and-key, you can try this DIY to make copies instead. Just don’t teach too many people in the neighborhood as it may promote theft and breaking and entering!
You never thought fire and tin could work just like that for your advantage. Now that you know replication, you mustn’t go around replicating too many keys as they can end up in the wrong hands. Only make those you need and destroy the unnecessary ones.