How to Pick a One Hole Door Lock | An Expert Guide


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Keys are little things that are easy to lose and hard to find. At least 9 out of 10 people have already lost or misplaced their key somewhere and cannot open their house. So how do you open the door? We have concocted some good practices to achieve this. So you don’t risk sleeping outside or waiting for hours for other family members to arrive. We invite you to continue reading this guide on how to pick a one hole door lock.

How to Pick a One Hole Door Lock

how to pick a one hole door lock

Opening entrance doors that have a lock with only one hole is a more difficult task since they usually have complicated locks. It is worth thinking carefully before trying to solve such a problem on your own: an unprofessional approach can adversely affect the state of the door itself, and replacing a metal entrance structure is not a cheap pleasure. Before getting started, do not forget that the main goal is to open the locks and not break the door.

The process of this event will also depend mainly on the type of castle. If the reason for opening the door is a broken key, you must first remove the debris from the larva. To do this, first pour a few drops of grease into the keyhole: WD-40 or machine oil. It will take 15–20 minutes to spread evenly along the well, after which you can remove the debris. If a small part of the debris protrudes outward, this simplifies the task.

You can gently hook it with pliers or tweezers and, swinging from side to side, pull it out. If you cannot hook the piece from the outside, you will need two thin objects, for example, an awl. Next, grab the stuck part with the tips, swing it, and try to move it. When the debris is removed, you will open the door to the apartment very soon. A good artisan will also duplicate the two broken halves, and this will solve the problem.

Cylinder locks

Cylinder locks

If you set the task to open a cylinder lock with only one hole and keep it in good working order, you need to have the virtuoso skills of a burglar. Such devices have a high level of secrecy, but it will not be difficult for an experienced artisan to open the cylinder lock with a hairpin or an ordinary paper clip. However, it would be more convenient to use master keys. You can use a paper clip as a master key, but you will also need a “roll-up,” which will serve as a screwdriver.

The task is to straighten the paperclip, crochet the edge slightly and insert it into the larva. Now you have to focus on hearing. The next task is to put the pins of the secret mechanism in the correct position. They must be picked up in turn, using an impromptu pick and roll. As already noted, this is a very difficult task, which is almost impossible to cope with without the proper skills.

Bolt Locks

The most authentic way to pick a bolt lock with one hole is with a screwdriver, awl, or crochet hook.

To open such a lock, insert the key into the keyhole and press it down. Here, the force is given to the slider. Because of this, the bolt tongue is also retracted, compressing the spring, thereby opening the door.

You can also open this type of lock with a slotted screwdriver. Breaking such a lock will take about 10 minutes. You can open all locks – rack, screw, overhead, hinged, square, round, or old Soviet with this technique as well. However, you need to know how to open it correctly because the internal composition is not visible, which means that it is easy to break the larva. It is impossible to repair a broken lock, so if you do not know how to open the lock module correctly, it is better to cut the latches.

Rack and Pinion Lock

If a rack and pinion mechanism with one hole is installed on your entrance structure, it will not be very difficult to open the door lock without a key. With a common tool at hand, we can neatly open the mechanism in one of three ways.

Read More: Key Stuck In Door Lock

Take two flat screwdrivers. They must be thin so that they can freely enter the well at the same time. First, put one screwdriver into the well. You need to put it on the notch of the crossbar and move it to the side. Then insert the second screwdriver and use it to fix the position of the bolt. You repeat these actions until the lock is open.

You can open the door locks using a wooden wedge key too. To make it, you need a softwood wedge. In size, it should correspond to the parameters of the well. It would help if you drove the wedge into the well, and then pulled out. Notches will be visible on the surface of the wood. You will have to cut the wood a little to make a key and open the door.

Learn More: How To Get A Key For A Door Lock

This option is available only if there is a distance between the door leaf and the frame to insert the crowbar. The tool is placed in the gap between the jamb and the door, and then squeezed out until it stops. You have a gap where you can insert a flat screwdriver and slide the bolts inside the lock with it.

Opening a Padlock

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Padlocks usually have only one hole, and they are not very durable too. On the other hand, they are often used to protect utility rooms, sheds, basements. When keys are lost, such locks are usually picked because they are of little value. Here’s how padlocks are picked:

Take two open-end keys and insert them in such a way that each of them grabs one shackle. In this case, the keys should be in contact with the lateral ribs. It would help if you pulled the free edges of the keys too. As a result, part of the lock near the latch breaks.

Next, cut out a small plate from a tin can, bend one edge. You insert the blank into the slot with the unbent side that separates the lock body and the opening bow. Next, use a screwdriver to push the plate into the depths. As a result, the latch opens.

For the third option, you need a self-tapping screw and a nail clipper. You screw the self-tapping screw into the lock larva, hook it with a nail puller and take out the larva.

Using a drill

There is a less delicate but more affordable way to pick a door lock that has one hole. This will require tools such as an electric drill, a flat screwdriver, and a hammer. Sometimes, the lock lends itself to breaking without drilling, so you should first try this option:

  • insert a flat screwdriver into the larva as deep as possible;
  • making considerable efforts, try to turn the screwdriver inside the lock;
  • With a successful attempt to pull out the screwdriver, you can pick the lock.

This completes the task – you can open the door. If this method were unsuccessful, you would have to take a drill. Next, direct the drill directly into the larva and drill until you go through the whole key to the end. After that, you take out the larva and open the door.

How to Pick a One Hole Door Lock: FAQs

How do you open a locked door with a pinhole?

To open a locked door with a pinhole:

  • Pick a paperclip and open it to straighten it.
  • After doing this, insert the paperclip into the pinhole, and then wait until you feel the small hole inside the lock.
  • Twist the paperclip until the door opens.

How do you unlock a door with a hole in the middle?

To unlock a door with a hole in the middle:

  • Find a hard object that can slide into the hole. The ballpoint pen filler can work.
  • Push it directly into the hole. You will feel resistance at an inch or so.
  • Continue to push hard to move resistance.
  • When you feel less resistance and you hear a clicking sound, the door will open.

How do you pick a lock without a keyhole?

You can pick a lock without a keyhole using a plastic or credit card. You can do this through the following steps: 

  • Hold the door handle tightly with your non-dominant hand. 
  • Push the entry doors to obtain a wide gap between the door frame and the lock. 
  • Insert the plastic card into the gap above the door handle at a slight downward angle. 
  • Swing the plastic card down until it meets the locking mechanism of the door.
  • Slide the plastic card against the inclined part of the metal locking mechanism.
  • When you feel that the resistance of the lock is reduced, push the door open. You may need to twist the card and door handle to open properly, and this may take several attempts.


In conclusion, almost every person at least once in his life has faced the inability to get into his own house because the door does not open. On the other hand, FBI burglary statistics depict that over 65 percent of home break-ins occur by applying force on the front, back, or garage service door. It is not to mention the 12 percent of break-ins where burglars find a “hidden” key or walk in through an unlocked door). For those who may be in such a situation, this highlight on picking a door lock with one hole would be indispensable.

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