![]() In fact, you usually have to go through the dealership to have chipped car keys made. If you’ve ever tried to have a copy of your car key made, you know that the average locksmith is incapable of doing it. If you’re worried about safety and security when you’re having spare keys cut, a restricted key may be the best option. This makes it much less likely that your key would be able to be duplicated if it were stolen. The machinery that creates these keys is only allowed to be purchased by certified locksmiths who have passed special security checks and patent training. This patent prevents them from being duplicated at a hardware store or pop-a-lock operation. Restricted keys are keys that have been designed with a unique patent. While they offer some protection, “Do Not Duplicate” keys are the lowest level of security you can obtain through your spare keys. You may have to provide confirmation of the address, permission from the property owner if you are not the property owner, and the original locksmith’s information in case the key was specially made. Unfortunately, in the US, this disclaimer has no real legal weight, and most machines and locksmiths can duplicate the key unless it was specially made.Ī really good locksmith should ask for proper documentation before duplicating a “Do Not Duplicate” key. This can be a good deterrent if your key is stolen – it is meant to prevent other locksmiths from copying the key. ![]() You’ve likely seen certain keys that have “Do Not Duplicate” stamped on them. ![]() Restricted keys, keys marked Do Not Copy, and chipped car keys all offer some measure of security against too many copies being made. Can I copy any key?įor security purposes, some keys are made to be more difficult to copy. They use different milling and grinding techniques and equipment, but they all accomplish the same basic functions. There are several different types of key cutting machines, but all of them are more or less automated and based on the early 20th-century design of key duplicators. Burrs have to be removed because they are very sharp and could injure you or cause damage to your lock. The original key moves along a guide to keep it from being damaged and the blank moves against a wheel that cuts it.Īfter the key cutting is complete, the new copy of your key is “deburred.” Deburring involves scrubbing with a metal brush to remove burrs (little pieces of metal that stick out). When you request a key cutting, a blank key is fitted into a vise – usually in a machine – over your original key. Key cutting is the most popularly used method for key duplication. Key duplications is the process of making a key based on the cut of an existing key.
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