Measure from the center of the door knob hole to the edge of the doorway to find the size of the door set.
Interior door handle hole size.
To know where to drill this hole from the edge of the door you need to know the backset of the lockset.
Tape the template to the door and mark the centers of the lockset and barrel hole by making an indentation with the tip of a spade bit.
The standard sized bore hole is 2 1 8 in diameter.
This cross bore is where the latch is installed.
The small hole along the edge of the door frame usually measuring about 1 inch in diameter.
The bore hole is the large diameter hole where the door knob is mounted.
Exterior locksets commonly have a 2 and 3 4 inch backset.
Mark the line at 2 3 4 inches for an exterior door.
Lock spacing the distance between two locks.
The hole saw has a pilot bit that centers on the mark.
Exterior doors are typically 1 3 4 inches thick while interior doors measure 1 3 8 inches thick.
It features two bi metal hole saws and a height alignment window for accuracy.
Choose the mark that corresponds to the door width.
The dewalt door lock installation kit helps you install door locks on wood and metal doors.
It works for 2 3 8 in.
The latch will fit into the 1 inch hole.
Most interior doors are prepped with a single boor hole.
When replacing locks the latch backset needs to match the holes bored in the door.
In most cases the door set which is inside of the door and controls the door latch.
When boring deadbolt locks in a door there are two standards for spacing between the bottom lock and the deadbolt.
The center of this hole should be located 2 3 8 inches or 2 3 4 inches back from the edge of the door.
Note that the template offers two possibilities for the barrel hole one for a 1 3 8 inch door and one for a 1 3 4 inch door.
Backsets and 1 3 8 in.
Through the edge of the door there is a 1 cross bore that extends from the edge of the door through the bore hole.
The point where the two lines intersect is the center of the hole.
This is the backset dimension bore a 1 inch hole in the edge of the door located on the centerline of the 2 1 8 inch hole.
Bore a 2 1 8 inch hole through the door.
The two most common are 5 1 2 and 6 from the centers of the two holes.
Fit into the door prep shown above.
Most interior locksets have a 2 and 3 8 inch backset.