How to drill a lock with a drill or a screwdriver?

What if the lock from the front door jammed or the key was lost? Do not want to break the door, hiring professionals using jammers is expensive. The easiest and most inexpensive means is to drill a cylinder of the lock, the so-called larva. After this procedure, the lock will open, but it will be broken. To restore it, you just need to buy a new cylinder mechanism and install it in place of the old one.

Preparation for work

Before you roll up your sleeves and rush to drill a lock, you need to carefully study it. There are locks quite complex, with a special bronenaglade. Also inside the mechanism manufacturers of good, sound locks insert particles of hard metals. This is protection against drilling. From such impregnations the drill can be scattered into small pieces.

If possible, try to find out where the castle has pins, how they are located and what their number is. If you have a simple lock, you may not need to drill it. It will be enough to tap the cylinder of the castle with a hammer. But if you have an expensive steel lock with special protection, it is better to look for other ways of opening the door. You can not drill steel anyway.

Required Tools

Before you drill the larva of the castle, prepare everything you need to once again not run around the neighbors with requests.

1. Drill is required for drilling, preferably powerful and operating from the network. It is unlikely that the drill on the battery (portable) will cope with this task, since the power may not be enough to perform such a procedure.

2. If the drill you and your neighbor does not have, you will have to think about how to drill the lock of the entrance door lock with a screwdriver. If the battery is fully charged, it may well turn out. And the screwdriver must be powerful, otherwise the drill will get stuck in the door and it will not be able to complete the task to the end.

3. Drills of different diameters will be needed. A thin drill, according to the size of the entrance to the slot of the castle, will be used first, then you may need a bit of a larger diameter drill. The largest drill should be the size of a cylindrical mechanism.

4. A large flat screwdriver will be needed at the end of the drill to open the door.

5. Silo or core.

Where and how to drill?

Before you drill the larva of the lock, you need to find the point to which you put the point of the drill. To do this, calculate from which side of the castle the pins are located. The inlet of the larva is divided into 4 equal parts. On the side where the pins are, count 1/4 of the piece and saw the edge of the drill with a saw. This point will be our goal of drilling. To the drill does not jump off the cylinder, at this point it is necessary to pierce a small point with the help of an awl or punch.

Next, take the bit with the smallest diameter (3 mm) and start to work. If the lock is simple, then it will be sufficient to use only this drill to break all the pins. The number of them in the cylinder of the lock varies from 5 to 7 pieces. Although there are locks with more.

To fix the effect, it is necessary to drill a hole once again, but already with a larger diameter drill, for example, 6 mm.

The last stage of the work will be opening the lock with a large flat-blade screwdriver. It must be inserted into the resulting hole with a sharp part and turned in the direction in which you usually turned the key. The door should open easily.

Additional measures

There are times when the mechanism does not open after you drill the larva of the castle. Do not despair! There is a more drastic method of drilling. A large drill with a diameter of 19 mm was prepared for this purpose. This is the standard size of the larvae of all locks. After this work the castle will be completely broken. If there is a special tubular drill of this diameter, then you can use it.

Tips and Tricks

1. To ensure that the drill does not break during operation, it is necessary to keep the drill perpendicular to the inlet.

2. Drilling at high speed is not recommended.

3. If the progress of the drill is tight, then you need to turn back (reverse) and try again at first.

4. When drilling touches the pins, a slight delay will be felt, but you can not press harder, as it can break. We must act methodically and smoothly.

5. Before you drill the larva of the lock, take care of the goggles. The metal shavings flying out from under the drill are hot and can burn your eyes or face.

6. The drill also becomes hot, so be careful when touching it with your hand. It is better to use gloves or wait a couple of minutes for the drill to cool.

7. To continue not to get into such extreme situations, you need to have several spare keys. If you live alone, you can leave one spare key for neighbors or at work. But if you lost the key or you were stolen by fraudsters along with your wallet and documents, it is better to change the lock for your own safety. Especially if the stolen documents indicated your address.