Låsräfflor

Låsräfflor, often translated as "tumbler grooves" or "key bitting," refer to the precise cuts and depths made on a key that interact with the internal mechanism of a lock. These grooves are not random; they are meticulously designed to align with the pins or tumblers within the lock cylinder. When the correct key is inserted, the unique pattern of its låsräfflor lifts each pin to a specific shear line, allowing the cylinder to rotate and the lock to open.

The complexity of låsräfflor can vary significantly. Simple wafer locks or pin tumbler locks typically have relatively straightforward bitting patterns. However, more advanced security locks might employ intricate and varied låsräfflor, sometimes including side-cuts, complex angles, or even grooves on multiple surfaces of the key. This complexity increases the difficulty of picking the lock or creating unauthorized duplicate keys.

The process of creating these låsräfflor is called key cutting or key bitting. This is typically done by locksmiths or authorized key duplication services using specialized machines that can precisely measure and cut the key blanks according to a specific code or pattern. The accuracy of the låsräfflor is crucial; even a slight deviation can prevent the key from operating the lock correctly, or worse, cause damage to the lock mechanism. Each unique set of låsräfflor corresponds to a unique key code.