Rekeying a lock is substituting the older lock hooks with fresh lock hooks. Locks are often re-keyed to construct master-key systems, create a pair of locks discuss a frequent key, or even to remove compromised keys. Occasionally worn pins have been replaced with fresh pins in the event the previous pins become too short to get to the shear-line. The shear-line is that the thin line shared with the plug plus it is searchable housing. Lock cylinders utilize distinct length pins in various combinations to make comparatively unique key bitting. When a key has 5 cuts, then the lock has 5 hooks. Different brand locks every change in several little ways, this is quite accurate when servicing them. Many manufacturers provide merchandise particular manuals. Information revealed in manufacturer guides can be otherwise tough to discover, as is locksmith substance generally.