Duplicating Old and Worn-Out Keys

Copying an old and worn-out key can be a little bit more complicated than copying a relatively new key. If you’re having troubles opening an old door or an antique cabinet because the key doesn’t look so good anymore for some reason, then you need to bring it to a store, like Ace Hardware, to get it copied. Please note however that the copy may not be perfect since the original has already been too worn out—the pins will not match exactly with the shear line. Still, the store personnel will be able to try and measure the cut using the original. They should also be able to get measurement references from online programs or books. This way, they will have a better idea of how to get the right measurement for your key.

In case the key duplicate will not work, it may be because the pins in the lock are worn down like the original key. To prevent this from happening, explain the situation to the personnel as he or she may know what to do.

When you turn the key, you can try to give it a jiggle because sometimes, especially for replacement keys, the movement is needed to push the pins down the lock to put it in proper position. With the pressure on the pins and cylinder, the key may be able to pop into pop into place, especially if the problem is a bump on the key. Or, you can pull the key back by just a fraction before trying to turn it, and see if the technique will work.

You can also check if there are burrs on the new key. You can remove the burrs by stropping it on denim a few times. Check if there have been significant changes on the depth of cut, as well as length differences from the bow to the tip. This can happen when the blank key wasn’t aligned properly in the key cutter.

If you’re still having problems with your copies, there are two things you can do. One, you can bring your original key to an expert locksmith shop and see if they can do a better job. Usually, they would have more expertise in this this area. The locksmith would have better resources in finding out ways to make the new keys fit. And two, maybe it’s time to retire the original key and lock. If you’re dealing with antiques, you should still be able to buy a lock that will look beautifully with the antique. It would be more beneficial in the long run, rather than trying new keys that may not work.