Multi-Function Keys (MFK)
Multi-Function Keys (MFK) are a flexible two-part automotive key system made from a reusable key head and a separate uncut blade. Locksmith professionals can select the correct MFK Key Blades, attach them to compatible MFK Key Heads and assemble the key needed for the job. A suitable chip from Transponder Chips can also be inserted into the head to create a complete transponder key.
The system supports three practical uses:
- Test Keys: Attach an inexpensive cut blade to the reusable head and test it in the lock to confirm the keyway and cuts before duplicating onto a more expensive transponder key or remote head key.
- Plastic-Headed Mechanical Keys: Combine the correct blade and head to create a permanent, professional mechanical key without a transponder chip.
- Transponder Keys: Insert the correct chip into a compatible head, attach the properly cut blade and program the assembled key to the vehicle.
This modular system helps locksmith shops reduce inventory costs and build different key types from the same components.