Mortice keys are typically used for internal doors for enhanced security. They usually fit in the lock hole that requires a notch to be drilled into the opening. The reason behind this is that the mortise is a very secure part of the door and it is a great idea to make sure that it does not need any sort of adjustment in order for your door to be secure. Once a mortise has been drilled, the key is inserted into a recess in the lock where a series of pins called mortice pins are put into place.

Mortice keys

Mechanical key cutting machine for mortice keys with sideward cuts

Mortice keys come in two varieties. The first one is the mortice key which is a cylinder that has a mortise hole at one end. The other variety is called the key lock cylinder. Both are basically similar but with slightly different sizes and shapes of the hole and the pin head. Most mortice locks that are in use today have both types in use. This way, they are able to work with a large variety of locks that would otherwise be difficult to get inside a home with a conventional lock.


Mortice keys can be purchased from any hardware store that sells security products. There are even some online stores that sell them. The most important thing is to ensure that you buy them from a reputable company that will give you excellent customer service and support if needed. When looking for the right kind of key you must make sure that you buy the right size and that they fit properly in the lock.

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