complementary keyway

  n.
   usually a disc tumbler keyway used in master keying. It accepts keys of different sections whose blades contact different bearing surfaces of the tumblers.

Locksmith dictionary . 2014.

Look at other dictionaries:

  • master blank —   n.    a key blank used in a complementary keyway lock, on which only the master key combination is intended to be cut …   Locksmith dictionary

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