A wafer lock is a type of locking mechanism commonly used in doors and cabinets. It operates using a series of flat, disc-shaped wafers that align with a specific key. When the correct key is inserted, the wafers move into the correct position, allowing the lock to turn and open. These locks are popular due to their simplicity and effectiveness. They are often found in residential and commercial settings, providing a reliable level of security. Unlike traditional pin tumbler locks, wafer locks are generally easier to manufacture and can be more cost-effective for mass production.