The pin tumbler lock is the most widely used locking mechanism in the world. You'll find these securing front doors, cars, mailboxes, safes, gun locks,... | By Art of Lock Picking
How to Pick a Pin and Tumbler Lock - YouTube
Pin-Tumbler Lock - an overview | ScienceDirect Topics
04 - How Pin Tumbler Locks Work - YouTube
locks and keys
The Ultimate Guide To Euro Cylinder Locks | Latham's Hardware