Use a 2-1/8-inch hole saw to drill the hole for the deadbolt lock assembly. To prevent splintering in a wood door, drill halfway through one side, and then flip the door and drill through the other side.
The deadbolt lock set will come with a template to help you with measurements. Be sure to use the correct size drill bits specified in the lock set instructions, though most standard deadbolts require a 2 1/8-inch hole saw for the lock bodies and a 1-inch spade bit for the sliding bolt assembly.
Drill face hole using hole saw; drill from both sides to prevent splintering. Drill edge hole with spade bit. Insert deadbolt into edge hole and mark its outline. Chisel out mortise for deadbolt.
Most deadbolt assemblies are a standard size, but you'll need to read the instructions or measure the assembly to choose the correct hole saw bit.
Most standard deadbolts require a 2-inch hole saw for the lock bodies and a 1-inch spade bit for the sliding bolt assembly, so be sure to use the correct size drill bits.
The standard measurement of a deadbolt hole requires 2 1/8 inches diameter for the cross bore and 1 inch in diameter for the latch bore. There could be hole sizes bigger or smaller than the standard. Make sure that you use the correct drill bit sizes when drilling for the bores.
Spray the lubricant inside the deadbolt and around the outer edge of the key hole, and place the tip of the drill bit onto the center of the key hole. Pull the trigger on the power drill to spin the drill bit. Gently apply pressure onto the drill to force the drill bit into the key hole.
Even if you padded the width of your door around the installation point to reach the minimum needed, drilling the hole for the deadbolt will essentially remove a notch from your original door (deadbolts are commonly 1" thick).
Do Deadbolts Go Above Or Below The Door Handle? Deadbolts are often put above a door handle, although they can be positioned both on top or under the doorknob. Placing a deadbolt on top of the knob is more likely to prevent clashing and makes the lock easier to access.
To unlock a privacy lock you'll need a flathead screwdriver that is small enough to fit into the hole on the doorknob. Insert your screwdriver into the hole and push forward. If your doorknob is using a push-button type privacy lock, then you should hear a loud click and the door will open.
Cobalt drill bits are used for drilling hard metal and steel. They dissipate heat quickly and are highly resistant to abrasions, making them better for drilling into hard metals than black oxide- or titanium-coated drill bits.
As long as you don't have a steel door, installing a deadbolt is a job that you can do yourself, including making the cutout to chiseling in the strike. Deadbolts frequently come with locksets as part of a set, but if you have to buy a new one, be sure to match the existing knob.
Cut the Latch
Using a chisel, cut along the outline as deep as the plate is thick. Then chisel to the same depth every 1/8 inch between the top and bottom of the plate outline. Turn the chisel bevel-side down and remove the waste, working from the middle out.
Well, deadlocks and deadbolts are the same in that they both need a key to lock. However, while a deadlock can only be unlocked in deadlock mode with a key, deadbolts can be locked and unlocked with a key and have a metal lock that extends from the door into the wall.
Standard door preparation for a door with both a door knob and a deadbolt have two sets of bore holes and cross bores stacked on top of each other at 5 1/2" from center to center (like the diagram shown on the left) It should have the exact preparation for the deadbolt, as the knob below with a 2 1/8" diameter bore ...
Overall Latch Size = Backset
An easy way to choose which latch you need is to measure from the edge of your door to the centre of your door Stile. Choose the Backset which is closest to this measurement, and the handle will be as central as possible to the Stile on your door.
Unfortunately, you can not unlock a deadbolt with a credit card. Credit cards will only work with slanted-latch-style locks. Furthermore, the slant of the latch must be facing you so that you may press it in using your card.