Dimple key is a type of security key characterised by the presence of cone-shaped dimples drilled into the flat surface of the key blade, which align with corresponding pins inside the lock. Unlike traditional keys which have a series of cuts along the top edge to move pin tumblers, the dimple key's design allows for a more compact and complex arrangement of security features, enhancing resistance to picking and duplication owing to its unique pin positioning and depth variations. The orientation of the dimples can be varied, allowing for a higher number of unique key combinations, which significantly increases security levels.
The design of dimple keys often includes multidirectional dimples that require specially designed key pins of varying lengths to match. These keys may also feature magnetic, active, or electronic components, enhancing their security functionality. The precision required in crafting both the key and lock mechanisms for dimple keys necessitates advanced manufacturing technologies, typically involving CNC machining for high accuracy. This technology ensures that the intricate patterns of dimples are perfectly replicated to meet the specific tolerances required for effective operation. Dimple keys are commonly employed in high-security environments such as residential and commercial properties requiring superior protection against unauthorised access.