Measure the size of the existing hole in your door using a tape measure.
Old door enlarge existing door handle hole.
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Mark the center of the existing hole on the edge of the door.
Use a hole saw to drill through the plywood and halfway through the door.
Mar 25 2016 explore bruce wiseman s board home.
They were moved down to 1m but now there are holes where the handles and strike plate used to be.
The plywood will hold the pilot bit on track until the saw starts cutting.
Turn the door over remove the plywood disk from the hole saw and use the hole saw to drill through the other side of the door until the two holes meet.
When enlarging a lockset hole mark the centerlines of the old hole on the door.
To overcome this problem fasten a piece of 1 2 inch plywood over the existing hole.
See below for a shopping list and tools subscribe to this.
Then bore into the plywood and through the hole behind it.
2 draw a circle on a sheet of plywood measuring the same size as the hole in your door using a compass to make the circle.
Clamp a piece of plywood to each side of the door lining up the center lines with the center line on the door edge.