What is a Mortise Lock and how to install that?

 What is a Mortise Lock and how to install that? 
A mortise lock is a type of lockset that needs to be installed inside the door.A mortise lock set composed of the cylinder,lever handle,escutcheon,rosette and other parts. However, you will find that the complex design and function of this lock make the lock quit mysterious.

Installing a mortise lock starts with making precise cuts in the door,otherwise, there may still be problems with the subsequent installation of exterior decoration.Then start to install the handle that fits the mortise lock, and a completed door lock set is installed successfully. Although the installation of a mortise lock actually weakens the structure of a typical wooden door,but stronger in every aspect than other types of locks.