The door prep for the King Cobra mortise lock and the door prep for the Schlage L9000 mortise lock are not the same.
Both locks have a 2 ¾" backset, but the placement, spacing, and size of cylinder, spindle, and mounting post holes are different.
The Schlage L9000 N escutcheon trim is wide enough at 2 ½" to cover the King Cobra door prep holes. The Schlage L9000 L escutcheon trim at 1 ¾" is not wide enough.
Please click on the King Cobra Door Prep and Schlage L9000 L1 template for reference.
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