Entry door knobs step 1.
How to cut a mortise door lock.
Tap the chisel with a hammer to make a 1 8 inch deep cut again match the hinge leaf thickness.
Measure and mark a line along the center side to side of the jamb strip intersecting the line made in.
Angle your chisel so it sits at about 45 degrees making sure the beveled side faces up.
Using a sharp chisel cut out the rectangular recess on the edge of the door to take the front plate of the lock.
Move the chisel as needed to cut along the full width of the mortise.
Mark the area around the strike plate that you want to install flush with the wood.
Mark the precise center top to bottom of the bolt.
Create a series of angled chisel cuts between the outlines.
How to chisel out a door lock plate.
Remove door latch step 2.
Close the door and look for where the lock bolt or latch bolt contacts the doorjamb.
Cut the faceplate step 3.
Fit the lock and check the positions of the door handle spindle and key hole adjust these if necessary.
Use the chisel to deepen the outline marks.
Create the mortise step 4.
Fit the lock into the door and secure using screws.
Then create angled cuts across the grain of the mortise spot by tapping the back of the chisel with your hammer or mallet.
How to cut a mortise for a deadbolt lock.
Hold the chisel vertically about 1 8 inch away from one end of the mortise outline inside the waste area.
Screw the faceplate into place.