Step by step how to drill hole for new door knob https youtu be mdxyocu8wou.
How to drill a door lock hole.
Switch to either a larger 3 4 inch 19 mm drill bit or a specially made cylindrical tubular lock bit.
Most interior locksets have a 2 and 3 8 inch backset.
Exterior locksets commonly have a 2 and 3 4 inch backset.
This will destroy the entire lock.
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.
These methods can be used for the majority of locks you come across around your house.
Drill through the entire mechanism.
1 tape the lock template to the door positioned so that it is square or.
Tubular lock bits are generally 3 75 inches 9 53 cm and similar to hole saws used to drill larger holes for installing locks in doors.