Inside the lock is a metal plate known as a cam, which is attached to the core of the locking device. When the cam is turned one way, it rotates as the key is turned. The cam rotates between 90 to 180 degrees, locking and unlocking the locker door.

How do you open a lock without a key?

Hold the tension wrench twisted in the correct direction and insert the rake into the lock where the teeth of the keys would go. Push and pull the rake out of the lock, twisting it and working by feel. Twist the tension wrench in the correct direction, and the lock should spring open!

Do you get a locker in middle school?

Middle Schools Have Lockers: Your tween probably didn’t have a locker in elementary school, but he will in middle school. Lockers are necessary as the children will most likely change classes throughout the day, and they need a central location to store their belongings and books.

How do you open a lock with 4 numbers?

How to Open a Four Number Combination Lock
Find your combination. Go to the first number. Set the second dial on the lock to the second number in the combination. Use the third wheel to find the third number in the combination. Locate the fourth number in the combination on the bottom wheel on the lock and center it.

How do you open a lock with hairpin?

Stick the flat end of the pin into the top of the lock and bend it. Stick the pin in about 1 centimetre (0.39 in), then fold the rest the bobby pin until it’s flush against the face of the doorknob. This will bend the tip at an angle. You’ll use the bent end of the pin to disengage the pins in the lock.

Is there a key that can open any lock?

Master key: The master key can open all locks you have in your residential or commercial property.