Master - Key  Control

The new patent-pending Master Lock (ML®) Key Control System makes key controlled security a cost-effective possibility for virtually any application!

Patent-pending Key System


Cylinder Cross-section
Patent-pending key system for absolute key control

  • Exclusive key and cylinder design guarantees system protection
  • Added locking feature allows for the creation of numerous one-of-a-kind "virtual keyways"
  • Key blanks are completely restricted, making all unauthorized duplicates impossible
  • All operating keys are unique to your facility
  • Free record keeping service is available for all registered System end users
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    Padlock Key Control System


    Padlock Key Control System

    Available in the full range of Master Lock commercial padlocks including:

  • Laminated steel pin tumbler padlocks of all sizes
  • Pro-Series ® High Security iron shroud and solid steel padlocks
  • Pro Series® Weather Tough® and solid brass padlocks


  • 4 & 6-pin padlock cylinders

  • 4 & 6-pin Padlock Cylinders
     
    Door Key Control System


    Door Key Control System


    The ML® System will be available in architectural hardware compatible mortise, rim and a key-in-knob cylinder 1st Quarter, 2005.


      Contracts and monetary commitment are required of locksmiths for access to key blanks at levels 2 and 3. No contract or commitments for levels 1 and 4.
        Level 4. The highest level. Cut keys and locks available only with a special factory order.
        Level 3. Special virtual keyways only made available to institutions and corporations with an on-staff, in-house locksmith.
        Level 2. Special virtual keyway only available to retail locksmiths through particular distributors.
        Level 1. The lowest level. Sold without restrictions to locksmiths only.

    Available exclusively from Master Lock and its authorized System distributors and security dealers.
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