Many people wonder if it’s possible to tell whether a key has been copied. The short answer is: it’s nearly impossible to tell. Most duplicates are made using a key cutting machine that replicates the original key’s pattern. Once a copy is made, there’s usually no visible mark or indication that a duplicate exists.
Are There Any Signs?
While it’s hard to tell if a key has been duplicated, there are a few things to keep in mind:
- Different key head shape: Sometimes, a copied key may have a slightly different head or grip shape than the original. That’s not a sign of tampering — just a different key blank that matches your original key’s cut pattern.
- Functionality depends on the original: If the original key is bent or worn, the duplicate will inherit the same issues. That’s why it’s crucial to only copy keys that are in good condition.
Don’t Wait Until It’s Too Late
Bent or heavily worn keys are more difficult to duplicate. Not only is it harder to position them properly in our key cutting machines, but there’s also a risk the key could break during the process. For this reason, it’s smart to make extra copies before your key starts malfunctioning.
If your key is already damaged, we recommend contacting a locksmith instead of trying to make a copy.
Does Copying Affect the Original Key?
Not at all. During the duplication process, your original key is not altered or affected. It’s simply used as a reference to cut the new key.
Want to Learn More?
If you’re curious about how key duplication works, check out our article: How Key Copy Works.
Where to Get a Key Copied
Some of our MiniFob locations offer key cutting services. To find one near you, visit our store locator. You can also go to your preferred city page on our website (e.g. Toronto), where all store listings clearly show the services they offer. If key cutting is listed, you’re good to go!
We hope this helped clarify the topic. Making a spare key in advance is always a smart move — and we’re here to help when you need it.
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