Absolutely! Locksmiths have a number of tools that they can use in order to make copies of keys in different ways. Most of the time, we’re used to seeing them take our original key and make a copy. But, if they’re coming in for break-in repairs, you may want them to rekey your locks. If they do that, then they will be able to use a mold or other tool to copy the pattern inside of your lock. Then, they’ll use that pattern to make new keys.