ejector hole
A hole found on the bottom of certain interchangeable cores under each pin chamber. It provides a path for the ejector pin.
ejector pin
A tool used to drive all the elements of a pin chamber out of certain interchangeable cores
emergency key
The key which operates a privacy function lockset
emergency master key
A special master key which usually operates all guest room locks in a hotel master key system at all times, even in the shut out mode. This key may also act as a shut out key.
EMK
abb. emergency master key
ENG
symbol for engineer`s key
engineer`s key
A selective master key which is used by maintenance personnel to operate many locks under different master keys in a system of three or more levels of keying
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