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