- ¿Qué debo hacer cuando se parte una llave dentro de la cerradura?
- Sacar la llave con un mechero y un boli bic
- Utilizar silicona de barra de silicona
- Sacar la llave rota con unas pinzas
- Sacar la llave rota con un clip
- Sacar la llave rota con un imán
- Sacar la llave rota del bombín con unos alicates
- Desmonta la cerradura
- Preguntas frecuentes
Who has not ever put the key in the lock and has had to do you have to force it to turn it? This is a situation that can occur for different reasons: wear of the key or lock, cylinder breakage, rust, etc
- Home door security: locks, types and more
Now, the problem of exert too much force turning the key, it will break, leaving a piece inside. Once this happens, the truth is that removing a broken key from a lock is not an easy task, although there are remedies to achieve it .
Of course, and before facing this situation, we advise you not to use force if you find it difficult to turn the key. It is preferable to move it carefully.
What should I do when a key breaks inside the lock?
keep calm and evaluate the situation, The first thing is not to force the lock. Check if part of the key still sticking out; This will make removal easier.

Avoid sudden movements to prevent internal damage which could further complicate the repair or even require a complete cylinder replacement. Try homemade methods before calling a locksmith
You can use needle-nose pliers, a needle, or a magnet if the key is ferromagnetic. Another useful trick is to apply a little spray lubricant to facilitate the removal of the fragment. If the extraction fails, it is best to contact a professional locksmith.
If you want to know all the tricks, we explain some remedies to remove the broken key from the lock.
Take out the key with a lighter and a bic pen
One way to get that broken key out of your lock is to use a lighter and a Bic bolo.

You should first gently warm the end of a Bic pen with a lighter until it softens . Then, insert it into the lock so that it fits the contour of the key fragment.
When it cools down, try to pull it carefully. This technique may work if the bit is not too deep in the lock.
Use silicone from silicone bar
Another way to solve the situation is with hot silicone. You will have to heat a silicone bar until soft, press it against the exposed part of the broken key and wait a few seconds for it to cool and adhere.
Then pull slowly. This method is useful for little embedded keys and can avoid damaging the internal mechanism.
Remove the broken key with pliers
There are different materials that will help you extract the broken piece of key from the cylinder, among which you can use tweezers . However, whichever instrument you choose, there are two previous steps that you have to carry out for the method to work:
- Lubricate the lock : Get a lubricating oil and apply it to the lock so that the key does not rub and can be removed more easily.
- Place the lock in the unlock position : Generally, keys are inserted and removed in a vertical position (although in some cases it is horizontal). When you turn it, the cylinder locks and the key cannot be removed. If you see that it is not in the correct position, you can use the same tweezers, scissors, screwdriver, etc...
When you have completed these two steps, carefully insert the pliers, placing each end on one side of the wrench. Squeeze firmly and extract . With lubricant, the tweezers are likely to slip, so you will have to try a few times to get it right.
Remove the broken key with a paper clip
Definitely, It is not the first option of the majority because a lot of precision is required. Removing a broken key with a paper clip is not easy at all, perhaps more complicated than using tweezers or the magnet.
However, it is likely that you do not have any of these instruments on hand and you It's worth trying with the clip.
In this case, you will have to unroll it, putting the wire straight, except for the tip, which should be somewhat curved. When you have done it , insert the wire into the lock until it passes through the end of the key and bends around it. Then pull the clip.
Remove broken key with a magnet
Yes you can get a very powerful magnet , this can also be used to remove the broken key from the lock. Before trying it, it will also be necessary to place the cylinder in the unlocking position and lubricate the lock, of course.
Please note that the magnet should be as strong as possible, since the key will not come out easily.
Be careful when handling it, use gloves to prevent you from getting hurt when you bring it close to the metal lock if you grip it too tightly. It is preferable use thick gloves.
Remove the broken key from the cylinder with pliers
In the event that, when the key breaks, the end protrudes out of the lock, do not think about it and look for some pliers. It is a tool that most of us have at home, since it is commonly used.
Given this situation, It is the best option, since they have enough strength to hook the key and be able to extract it without major difficulty.
As we said, if you see a piece sticking out, Grab both ends with the pliers and pull them tightly . Before this, lubricate the lock and put it in the unlock position. You will see how the broken piece of key comes out of the cylinder without much difficulty.
Remove the lock
The most comfortable thing for you is to try the methods we have mentioned above before Consider removing the lock. This is the last step in case none of the previous ones work. Now, if the rest fail, find a screwdriver and Take the cylinder out of the door.

It is likely that, with the piece disassembled, it will be easier to manipulate to take out the key. Again, you can use tweezers, pliers or the magnet to achieve this.
All that said, ultimately, you can call a professional locksmith Let him take care of taking out the key for you. Although you don't lose anything by trying it yourself and you can save a lot of money, if you don't always get it You will have this alternative.
The locksmith will probably be able to remove the key and, if not, will be limited to change your lock.
How to prevent this from happening?
As we have already said, the key It can break for multiple reasons. The materials with which they are generally manufactured are brass and nickel , which means they are relatively soft.
The most common thing is that the lack of lubrication and temperature changes end up wearing out both the key and the lock. On the other hand, there is the issue of rust.
The same factors that we have mentioned also lead to the lock can rust from the inside , something that ultimately ends up making it easier for the key to break. The main thing is to purchase a stainless metal lock that, although it may be a little more expensive, prevents breakages.
In addition to this, keep the lock lubricated by applying oil every two or three months, it will prevent friction from breaking the key.
Frequently asked questions
How to prevent a key from breaking inside the lock?
As we have already said, the key It can break for multiple reasons. The materials with which they are generally manufactured are brass and nickel , which means they are relatively soft.
The most common thing is that the lack of lubrication and temperature changes end up wearing out both the key andla cerradura. On the other hand, there is the issue of rust.
The same factors that we have mentioned also lead to the lock can rust from the inside , something that ultimately ends up making it easier for the key to break. The main thing is to purchase a stainless metal lock that, although it may be a little more expensive, prevents breakages.
In addition to this, keep the lock lubricated by applying oil every two or three months, it will prevent friction fromromper la llave.
What are the best tools to remove a broken key?
The best tools for removing a broken key from a lock include:
- Key extractors: They are tools designed specifically for this purpose, available in locksmith kits.
- Precision tweezers: If the broken part protrudes slightly, fine pliers can help you remove it without damaging the lock.
- Locksmith hooks: Used by professionals, they are ideal for hooking the broken key piece and removing it.
- Lubricants: Sometimes applying a little oil or lubricant can make it easier for the key piece to slide and allow it to be removed.
Is it dangerous to try to remove a broken key from the lock on my own?
Yes, trying to remove a broken key on your own without proper experience It may be dangerous . Some risks include:
- Damage to the lock: Forcing the key or using inappropriate tools can damage the lock, leading to costly repairs.
- Make extraction difficult: If not done correctly, the broken key can move further inside the lock, making it difficult to remove.
- Personal injuries: Some tools, such as pliers or extractors, can cause cuts or injuries if not handled carefully.
If you don't have experience, contacting a professional locksmith is the safest option. They have the tools and knowledge necessary to remove the key without causing damage.
To avoid unnecessary scares, the best thing you can do is check the condition of your lock and if necessary, change it. Take a look at what we have in the catalog Yoigo Alarms , go to our website or call 900 622 532 and get informed.
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