A disc detainer is a type of locking mechanism commonly used in various security applications, such as safes and cabinets. It operates using a disc-shaped component that rotates to align with a specific key or combination. When the correct key is inserted, the discs align, allowing the lock to open. This mechanism is known for its resistance to picking and manipulation, making it a popular choice for high-security environments. The design of a disc detainer lock often includes multiple discs, which increases the complexity and security of the locking system compared to traditional pin tumbler locks.