A master key system is one in which each lock has its own individual key which does not open any other lock in the building, with a master key that can open all locks in the system. This is a feature that is utilised in the commercial environment where individuals often need different levels of access to distinct parts of a building, often for reasons of enhanced security or confidentiality.
Locksmiths will typically offer this service to businesses that require regulated access to different part of a building or complex, with a confidential record system that ensures that only the original customer has access to the master key. The security in the master key system can be further upgraded to two sets of master keys that operate two distinct sets of locks in a building, with a grand master key opening everything. Modern keys are manufactured so they are difficult to copy, with intricate cuts and complex pin mechanisms. These may also be patented which offers further security as only the manufacturer can authorise duplication of further sets of keys.
Other services a locksmith may perform include:
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