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Which opening method uses a lock's tolerances to find the opening combination?

  1. Manipulation

  2. Key Change

  3. Combination Override

  4. Forced Entry

The correct answer is: Manipulation

Manipulation is a technique that involves carefully interacting with the internal components of a lock to exploit its tolerances and imperfections. Every lock has slight variations, often due to manufacturing tolerances, that can lead to minor inconsistencies in the locking mechanism. Skilled locksmiths can utilize these irregularities to determine the combination that will successfully open the lock by systematically applying pressure or turning the components in a way that reveals the correct combination without causing damage. This method requires a deep understanding of the specific type of lock being manipulated, as well as patience and dexterity. It stands out as a non-destructive approach, contrasting with methods like forced entry, which involves applying significant force to break the lock. Key change or combination override methods focus on altering the lock functionality through different means rather than exploiting its inherent tolerances.