Eliminating maximum adjacent cut specification restrictions for telescoping pins

A key device for use with a cylinder lock that comprises a cylinder lock plug having telescoping plug pins, each telescoping plug pin comprising inner and outer pins, which are movable to a shear line against corresponding driver pins located in said cylinder lock, the key device comprising:

• a generally elongate shaft portion comprising a key combination surface that has a plurality of key cut stations for forming telescoping key cuts at each key cut station, said key cut stations having a telescoping maximum adjacent cut specification (MACS) that defines a maximum depth of adjacent key cuts for interfacing with telescoping pins of a telescoping plug pin of a cylinder lock plug, wherein the telescoping MACS is defined as:
• MACS
• =
• ID
• -
• CR
• 2
• ⁢
• ⁢
• DI
• ⁡
• (
• tan
• ⁢
• CA
• 2
• )
• wherein ID=outside diameter of the inner telescoping pin
• CR=cut root (length of bottom (“root”)) of the key cut
• DI=depth increment
• CA=cut angle (angle of cutting tool head used to create key cut;
• and
• a non-MACS telescoping key cut defined as a key cut that is not restricted by said telescoping MACS definition, formed at at least one of said key cut stations for interfacing with a first pin of a given telescoping plug pin, dimensioned to leave material in said elongate shaft portion for forming another key cut for interfacing with a second pin of said given telescoping plug pin and wherein a portion of said non-MACS key cut that interfaces with the first pin of the given telescoping plug pin has chamfered sides.