This room happened to have a key ed lock on it that.
How to drill a door lock open.
Certain locks are not going to open as easily as others even with drilling.
When a replacement lock can be found then the lock can be drilled open.
Most locks have about five tumbler pins to drill through although some have six or more.
Drill a hole through the lock cylinder through the guidance point.
Understand the lock well enough to drill it properly.
I recently bought a house my wife thought it would be a good idea to shut the door to one of the rooms.