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Which term refers to the part of a key that stops it from going too far into the lock?

  1. Key Stem

  2. Key Shoulder

  3. Tip Stop

  4. Key End

The correct answer is: Tip Stop

The correct term that refers to the part of a key that stops it from going too far into the lock is known as the "Key Shoulder." The shoulder plays a crucial role in the functionality of a key, as it serves as a physical stop that prevents the key from being inserted deeper than necessary. This helps ensure proper engagement with the lock's internal mechanisms and allows the locking and unlocking process to occur efficiently. Understanding this component is essential for anyone working with locks and keys, since a properly fitted shoulder prevents damage to both the lock and the key by avoiding excessive force or misalignment during operation. This also enhances the overall security of the locking mechanism by ensuring that the key operates as intended within the designed limits of the lock.