How does a pin tumbler lock work?
Apply tension: Use a tension wrench or torsion wrench to apply tension to the lock cylinder in the direction of its normal rotation. This will create a gap between the pins inside the lock and allow them to be manipulated with a lock pick tool.
Manipulate the pins: Use a lock pick tool, such as a hook pick or diamond pick, to manipulate the pins inside the lock cylinder. The goal is to set each pin to the correct height so that the lock can be opened.
Open the lock: Once all the pins are set to the correct height, use the tension wrench to turn the lock cylinder in the direction of its normal rotation. If done correctly, the lock should open.