Switch to either a larger 3 4 inch 19 mm drill bit or a specially made cylindrical tubular lock bit.
How to drill a door lock hole.
Drill through the entire mechanism.
Exterior locksets commonly have a 2 and 3 4 inch backset.
Drilling a door lock opening in a wooden door requires a hole saw and a spade bit both of which are used with a drill.
This will destroy the entire lock.
To know where to drill this hole from the edge of the door you need to know the backset of the lockset.
Most interior locksets have a 2 and 3 8 inch backset.
The backset is the distance from the edge of the door to the center of the giant hole you drill in the face of the door.
Step by step how to drill hole for new door knob https youtu be mdxyocu8wou.
1 tape the lock template to the door positioned so that it is square or.