Determining whether a key is an original or a copy can be a complex task, especially for the average individual. With the proliferation of locksmiths and hardware stores selling duplicate keys, it's essential to understand the differences between a genuine and copied key. This article aims to guide you through the process of differentiating between an original and copied key.
Key cutting processes have evolved significantly over the years, making it challenging to distinguish between an original and copied key solely based on appearance. However, there are methods to help you discern between the two. Let's explore these methods in detail.
Visual Inspection
While not always conclusive, a visual inspection can often be the first step in determining if a key is original or copied.
Original keys usually exhibit signs of wear and tear, especially around the bit, or the part of the key that interacts with the lock. This is due to the accumulation of microscopic metal filings over time as the key is inserted and removed from the lock. Copied keys, on the other hand, typically show no such signs of wear, as they've not been used extensively in a lock.
Machine Markings
Upon close inspection, you might notice machine markings or a stamped number on an original key. These markings are remnants of the manufacturing process and are not typically present on copied keys.
Locksmiths or hardware stores often use these markings to track the original key's details. However, it's crucial to note that not all original keys will have these markings, and their absence doesn't necessarily indicate a copied key.
Key duplication machines
Key duplication machines can cut keys with remarkable precision, often replicating the original key's shape and width precisely. Therefore, visual inspection may not always be sufficient to determine if a key is original or copied.
In such cases, it might be necessary to use more advanced methods, such as laser key cutters. These machines use a laser to cut keys, ensuring even greater precision. However, they are expensive and less accessible to the general public.
Testing the Key
Once you've visually inspected the key, the next step is to test it in the corresponding lock. This method can provide valuable insights into the key's authenticity.
Insert the key into the lock and try to turn it both clockwise and counterclockwise. With an original key, you should feel a slight resistance as it engages with the lock's internal mechanisms. A copied key may feel more forgiving, with less resistance and a smoother turn.
Jiggling the Key
Another way to test the key involves gently jiggling it in the lock. With an original key, the lock's internal components should align precisely, making it feel stable and secure. A copied key, however, might feel wobbly or loose, as it doesn't align perfectly with the lock's mechanisms.
Note that even with an original key, it might feel slightly wobbly due to wear and tear on the lock's internal components. Therefore, some wiggle room doesn't automatically indicate a copied key.
Timing the Key's Insertion
A more advanced method involves timing how long it takes for the key to engage with the lock's internal components. With an original key, this process should take a consistent amount of time each time you insert the key into the lock.
Insert the key into the lock, and using a stopwatch, time how long it takes for the key to fully engage with the lock. Repeat this process multiple times. If the key is original, the time taken should be fairly consistent. A copied key might engage with the lock at different intervals, indicating that it's not a perfect replica.
Ultimately, determining whether a key is original or copied requires a combination of visual inspection and practical testing. While no method is foolproof, understanding these techniques can help you make an informed decision. If you remain uncertain, it's always best to consult a professional locksmith for expert advice.