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What characterizes a Five Pin Master Key?

  1. It operates multiple independent locks

  2. It is a master key for progressing five bitting positions

  3. It allows resetting of key locks

  4. It consists of three levels of keying

The correct answer is: It is a master key for progressing five bitting positions

A Five Pin Master Key is characterized by its ability to operate within a system that includes five different bitting positions. This means that the pins within the locks are cut to accommodate five distinct depths or cuts on the key, allowing for a more complex locking mechanism and increasing the potential combinations for keying. In a master key system, having five pin positions enhances security and versatility, allowing a single master key to access multiple locks that share the same pin configuration, while still providing unique keys for individual locks. This characteristic is essential for creating a master key setup, where one key can operate several locks, but with a detailed structure such as multiple bitting positions, it provides an optimal level of security and functionality. The other options either refer to aspects that are not specific to a five pin master key or involve functionalities that are not directly tied to the description of the key itself, making them less relevant when defining what characterizes a Five Pin Master Key.