Letterbox locks are a common type of lock found on mailboxes and other types of enclosures. They are typically made of a metal housing with a spring-loaded latch that is engaged by a key. When the key is inserted into the lock, it lifts the latch and allows the door to be opened.
There are a number of different ways to pick a letterbox lock, but the most common method is to use a tension wrench and a pick. The tension wrench is used to apply pressure to the lock, while the pick is used to manipulate the pins inside the lock. By applying the correct amount of pressure and manipulating the pins in the correct order, it is possible to open the lock without the need for a key.
