How To Drill A Door For A Mortise Lock

How to cut a mortise for a deadbolt lock.

How to drill a door for a mortise lock.

Use a 7 8 inch spade bit to drill two partially overlapping 5 8 inch deep holes centered above and below the midpoint inset. Square up the sides of the mortise with a chisel if necessary. Mark the area around the strike plate that you want to install flush with the wood. Create the mortise using a router attachment remove the wood between the pencil lines drawn on the door edge to create a mortise for the faceplate.

Remove the keep and drill a 16mm hole about 10mm deep. Carefully remove the timber inside the lines using the same technique as for the door latch. You want to drill part way into one side of the door stop and then start to drill from the other side. Push the keep on and mark a pencil line all the way round the hole inside for the latch.

That s what this video is here for. This lock can certainly be picked but what if you don t know how or you don t have anything on hand that can serve as a good lock pick. Use the chisel to deepen the outline marks. Drill the holes for the spindle and keyhole make the spindle hole at least as big as the spindle boss of the lock for the keyhole drill the top hole and cut out the shape using a thin pad saw.

Fit the latch and faceplate into the door. In the early days the pocket was cut out using a brace and bit. This ensures you don t splinter the wood on the face of the door as you blast through drilling from just one side. Transfer the positions of the top and bottom of the mortise lock body to the edge of the door.

It will show you how you can drill out the stump of a mortice lock allowing you to get past the lock entirely. Make a series of. It is not a difficult procedure and all you really need is a power drill with the appropriate bits and maybe. Use the 10mm chisel to square the hole up cutting at the top and bottom first.

Use a bevel edge chisel and hammer to square the corners of the mortise if the faceplate has square corners. Hold the strike plate over the mortise and score its outline with a utility knife. To install a mortise lock into a wood or composite door requires a pocket drilled into the edge of the door with the centerline of the door prep at 39 3 16 above the finished floor. Make a series of closely spaced cuts into the mortise area.

With the large hole cut it s now time to drill the small 1 inch hole in the edge of the door.