Place the template that comes with the lockset on the metal door.
Make lock hole bigger in metal door.
Clamp a piece of.
Mark the center of the existing hole on the edge of the door.
The plywood will hold the pilot bit on track until the saw starts cutting.
When enlarging a lockset hole mark the centerlines of the old hole on the door.
Mark with an x the center spot for the doorknob hole on each side of the door.
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Then bore into the plywood and through the hole behind it.
Take your time so you keep the.
Then mark centerlines on the plywood block.
How to cut a hole for a door knob in a metal door.
Cut two pieces of scrap plywood several inches larger than the diameter of the hole.