How To Open A Round Padlock Without Key

Losing a key can be a real pain, especially when it comes to unlocking a padlock. If you’re in a hurry or can’t find the key to your round padlock, don’t panic, you can still get it open. In this blog post, we’ll share some tried-and-tested methods that will help you unlock your round padlock without a key. From using a shim to picking the lock, we’ve got you covered. So, let’s get started!

Understanding Round Padlocks: Round padlocks are one of the most popular locks used for securing various items like lockers, bikes, and gates. They are known for their simple design and durability. These padlocks are made with a round shackle that slides into the body of the lock and is secured with a key or combination. Understanding the basic components of a round padlock is crucial before attempting to open it.

Components of a Round Padlock:

  • The body of the lock:
  • The body is the outer casing of the lock which houses the locking mechanism. It can be made of different materials like brass, steel, or aluminum.

  • The shackle:
  • The shackle is the U-shaped part of the lock that goes through the item being secured. It is made of hardened steel and is designed to resist cutting and sawing.

  • The locking mechanism:
  • The locking mechanism is the part of the lock that secures the shackle in place. It can be a combination or a key mechanism.

Types of Locking Mechanisms:

  • Keyed padlocks:
  • These padlocks require a key to unlock. They are easy to use but can be problematic if the key is lost or misplaced.

  • Combination padlocks:
  • These padlocks use a combination of numbers or letters to unlock. They are convenient as there is no need to carry a key, but they can be tricky to open if the combination is forgotten.

  • TSA-approved padlocks:
  • These padlocks are approved by the Transportation Security Administration and are used for securing luggage during air travel. They can be opened by TSA agents using a master key, so they don’t need to break the lock to inspect the luggage.

Understanding the basic components and types of locking mechanisms of a round padlock is essential before attempting to open it. Attempting to open a lock without proper knowledge can damage the lock and render it useless.

Tools Needed to Open a Round Padlock

Opening a round padlock without a key may seem like a daunting task, but with the right tools, it can be a quick and easy process. The first tool you’ll need is a tension wrench, which is used to apply pressure to the lock cylinder. You’ll also need a pick tool, which is used to manipulate the pins within the lock cylinder.

Additionally, you may want to have a pair of needle-nose pliers on hand to help with the delicate process of manipulating the pins. It’s important to use high-quality tools to ensure that they don’t break or become damaged during the lock picking process.

While there are many different types of tension wrenches and pick tools available, it’s generally recommended to use tools that are specifically designed for padlock picking. These tools are designed to fit the unique shape and size of padlocks, making them more effective and easier to use.

Steps to Open a Round Padlock without Key

If you have ever lost the key to a round padlock, you know how frustrating it can be to gain access to your belongings. Fortunately, opening a round padlock without a key is not impossible. Here are some steps you can follow to open a round padlock without a key:

1. Identify the type of lock

Before attempting to open the lock, it is important to identify the type of lock you are dealing with. Round padlocks can be either combination locks or key locks. Combination locks require a specific sequence of numbers to open, while key locks require a physical key. Once you have determined the type of lock, you can proceed to the next step.

2. Use a shim

If you are dealing with a key lock, you can try using a shim to open it. A shim is a thin piece of metal that can be inserted into the space between the lock’s shackle and body. Gently insert the shim into the space and use it to push the lock’s locking mechanism away from the shackle. With a little bit of pressure, the shackle should release and you can open the lock.

3. Try picking the lock

If the shim method does not work, you can try picking the lock. This method requires a little bit more skill and patience. Use a tension wrench to apply pressure to the lock’s cylinder and use a lock pick to manipulate the pins inside the cylinder. With the right amount of pressure and manipulation, the pins will align and the lock will open.

4. Call a locksmith

If all else fails, you can always call a locksmith to help you open the lock. Locksmiths have the tools and expertise to open a variety of locks, including round padlocks. While this option may be a little more expensive, it is guaranteed to work and will save you time and frustration.

Tips and Tricks for Opening a Round Padlock

If you’ve lost the key to your round padlock, don’t panic! There are several tips and tricks you can try to open it on your own.

  • Use a shim: Insert a thin piece of metal, like a paperclip or a shim, between the shackle and the body of the lock. Twist the shim back and forth until the lock pops open.
  • Try picking the lock: Use a tension wrench and a pick to manipulate the pins inside the lock. This method requires some skill and patience, but it can be effective.
  • Apply pressure: Hold the lock in one hand and apply pressure to the shackle with the other. Use a hammer or a wrench to tap the shackle while applying pressure. This can sometimes dislodge the locking mechanism and open the lock.
  • Use lubricant: Apply a small amount of lubricant, like WD-40, to the keyhole. Insert a key or a pick and jiggle it around to work the lubricant into the lock. This can help loosen any stuck pins or tumblers and make it easier to open the lock.

Remember, these methods may not work for every lock and should only be attempted on locks that you own or have permission to open. If all else fails, it’s best to call a professional locksmith to avoid damaging the lock or causing injury to yourself.

When to Seek Professional Help

If you have exhausted all your options and still cannot open a round padlock without a key, it may be time to seek professional help. A locksmith is trained to open locks without keys and can often do so quickly and efficiently. Attempting to force open a lock on your own can cause damage to the lock and potentially harm yourself.

It is also important to seek professional help if the lock is damaged or broken. Trying to fix it yourself can cause further damage and may end up costing you more in the long run. A locksmith can assess the lock and determine if it can be repaired or if it needs to be replaced.

Additionally, if the lock is on a valuable item or if there is a risk of theft or harm, it is best to seek professional help. A locksmith can ensure the security of your property and provide recommendations for additional security measures.

Remember, attempting to open a lock without a key can be dangerous and cause damage. If you are unsure or uncomfortable with the process, seek professional help to ensure the safety of yourself and your property.


Opening round padlocks without a key can be a challenging task, but it is not impossible. With the right tools and techniques, you can easily unlock a round padlock without a key. In this article, we have discussed several methods that you can use to open a round padlock without a key. These methods include using a shim, using a tension wrench, and using bolt cutters.

It is important to note that these methods should only be used if you have the legal right to access the padlock. If you are trying to open someone else’s padlock without their permission, you could be breaking the law and could face legal consequences.

Always use caution when attempting to open a round padlock without a key. Make sure you have the proper tools and techniques, and take your time to avoid damaging the lock or injuring yourself. With practice, you can become proficient at opening round padlocks without a key.


In conclusion, opening a round padlock without a key may seem like a daunting task, but it is possible with the right tools and technique. Remember, safety should always be your top priority, and you should only attempt to open a padlock that you have permission to access. Be patient and persistent, and don’t be afraid to try different methods until you find one that works for you. If all else fails, don’t hesitate to seek professional help. By following these steps and tips, you’ll be able to open a round padlock without a key in no time. Stay safe and happy lock-picking!

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