cylinder lock

Inside a cylinder lock, there is a sort of puzzle, which only the correct key can solve.

In the last section, we looked at pin-and-tumbler cylinder locks.

In the next section, we'll see how this works in a basic cylinder lock.

Actually, the process requires two pieces of flat steel to open cylinder locks.

With cylinder locks, it requires a pick and a tension wrench.

And the cylinder locks after each time you pick it-every one-seventh of a turn.

How many of these locks do you think you'd have done a day of the cylinder lock?

Double-key cylinder locks can be opened only with a key, either from the inside or the outside.

Going downstairs to the main door, I slipped it into the cylinder lock to check.