Definition: The term "copper key" refers to a small metal key that can be used to open or enter certain types of locks, usually by piercing them with a screwdriver. The word comes from the Old English word "kite," which means "key," and it is derived from the Germanic language and its roots. Definition: The term "copper key" refers to a small metal key that can be used to open or enter certain types of locks, usually by piercing them with a screwdriver. It comes from the Old English word "kite," which means "key," and it is derived from the Germanic language and its roots. In simple words: A copper key is a tool used for opening or entering locks made of metal or composite materials. This tool typically uses a small hole in the metal surface to pierce it with a screwdriver, allowing the user to open or enter certain types of locks, such as fire doors or wooden lockers.
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