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Types of Keys Cut For Cars A new car key is expensive. Keys for spares can cost hundreds, from a dealer or locksmith, especially if they include transponders and smart key fobs. The key cutting process is more than just forming a piece of metal However. Different kinds of keys require special equipment and methods to cut them correctly. Traditional Keys The key-cutting machines made of mechanical are used to cut traditional car keys. The key's edges are made to align with the pin pattern of the lock, allowing the key to ope