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The first key was made of wood, the image of which was hacked on a beautiful vase. Later, the first iron key was made in the 20th century, which gradually made great progress in the lock and key industry.
🔰The first part: The grooved ribbed part of the key, which opens the lock when it is inserted into the lock. In general, it can be said that there is a special key for each lock, and the keys are an inseparable part of the locks.
Types of keys
Because the key is a security tool and may be used in other places due to loss or theft. Therefore, each key has its own special and intelligent design, which makes it impossible for another person to use it for any lock.
Home keys
Household keys have been used a lot until today, and usually the shape of these keys is in the form of a cylinder consisting of two to five ridges and two edges. These types of keys are used for the doors inside the houses because these types of keys have protrusions that are compatible with locks of the same type.
Single edge keys
These keys are more advanced and only compatible with their own lock. Single-edge keys will not unlock until the key is fully inserted into the lock.
car key
The car key is used simultaneously to open the car door and turn it on, which has bilateral symmetry. There are some multiple car keys that, in addition to opening and turning on the car, have other functions such as opening the front doors and dashboard, the trunk door and the tank door.
Immobilizer keys (smart anti-theft)
These new generation keys have the ability to be mechanically synchronized with the lock, but also have the ability to be electronically synchronized. These keys have an internal electrical resistance that changes depending on the type of key. In the new generation, these keys are also equipped with a transmitter.
If you want to know how to make spare immobilizer keys to solve the problem of missing keys, you can see how to make spare immobilizer keys in the magazine section of Kara's technical site.
Double-edged and four-edged key
These types of keys, which are similar to household keys, have much more security because they have two or four ridges or depressions. The strength of the two-edged and four-edged keys is very high.
The key
Master keys have the ability to open many types of locks and have a different structure than a private key. The use of keys is used in office and hotels (special keys for guests and keys for the hotel manager) and public places.
Tubular key
Tubular keys are shorter than other keys and have a larger diameter. These keys are used to lock bicycles, sideboards and closets. These keys were used more in ancient times and are not used much now.
key card
Smart key cards are used to open locks that have a card reader. These keys are basically plastic that consist of a bar code or magnetic strip and have high security.
Switches
Switches are also a type of key and are used to open the car door and turn on and off the car engine. The installation location of the switch lock is installed in front of the driver, which is turned off or on by the electric current of the engine after placing the switch in it. Normally there is a separate key for the trunk of the car.