Template for mortice cylinder lock removal

摘要

Apparatus for facilitating the removal and replacement of a standard mortice cylinder or mortice thumbturn, the invention provides template structure which allows a mortice lock to be drilled in order to cut away the set screw or cylinder yoke holding the cylinder in the door or other structure in which the lock is installed, the lock then being removed by separate structure. The present template particularly allows drilling of a mortice lock or similar locking apparatus with minimal damage to the lock face and without damage to the keyway, the expensive keyway thus being reusable.