Well that's how Jiggler keys work. They come in a variety of patterns to help 'trick' the lock into thinking it's the right key. We have jigglers for wafer locks, pin-cylinder locks, cabinet locks, and auto jigglers car locks - basically wherever they will fit.
No, the police don't have “master keys” to anyone's home, unless that person leaves such a key in their possession or someone who knows that person provides them with such a key. ... Or someone in your family may left a key in the door's lock and the police simply used it to open the door.
Basic pin-and-tumbler locks have several spring-loaded pins inside a series of small cylinders. When the right key slides into a pin-and-tumbler lock, the pointed teeth and notches on the blade of the key allow the spring-loaded pins to move up and down until they line up with a track called the shear line.
In 1861, Linus Yale, Jr. was inspired by the original 1840s pin-tumbler lock designed by his father, thus inventing and patenting a smaller flat key with serrated edges as well as pins of varying lengths within the lock itself, the same design of the pin-tumbler lock which still remains in use...
- February 2020
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