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How to Open a 4 Number Combination Lock in 6 Easy Steps

Fact checked by Teddy B.Miller

how to open a 4 number combination lock

Want to know how to open a 4 number combination lock? Look for your combination number. Set the first number by rolling it until it is on the center of the wheel. Repeat this step for the second, third, and fourth numbers of your combination. When you are done, pull the bar on the top of the lock to open it.

Some people call for professional help to unlock 4 number combo lock. However, you don’t have to be confused because this tutorial will help you to open a 4 digit combination lock.


What You Need


The items you need in this tutorial are easy to find. You can find them in your house or borrow them from your neighbor. You can do this tutorial without the optional tools. However, having all the items will help you finish the steps faster and easier.

1. Current combination number

To open a 4 digit master lock, you need to have your current combination number. It is a random code included in the package once you purchase your lock for the first time. It is very important to secure your combination lock since it would be difficult and time-consuming to crack a combination lock with 4 numbers.

In case you forgot your combination, check if your lock is resettable or not by looking for the serial number. Unfortunately, the manufacturer cannot provide you with a code if it is a lock without a serial.

Some of the methods you can perform to open the lock are cracking the code, applying pressure to the lock, and shimming using a high-grade aluminum soda can.

You can contact the manufacturer if your lock has a serial number. They would ask for your serial number and you need to fill in the Lost Combination Form. Aside from that, you also have to give them a Notary Public so you can prove that you are the owner of the lock. You will receive your combination number in 4 to 6 weeks.

2. Gloves (optional)

If your hands are always wet and sweaty, you may want to wear a pair of hand gloves. A combination lock is sensitive when it comes to numbers. One mistake would require you to set the whole combination digits again.

A pair of non-latex is a good option. Non-latex gloves are gloves not made of latex. People who are allergic to natural latex rubber use this kind of glove as an alternative. When choosing a non-latex glove, make sure that it is not too fit and that it does not easily rip when you pull it out of your hands.

Another option is a pair of powder-free gloves. It is made of latex, however, it has undergone a process called chlorination that removes the powder residues, and at the same time, eliminates the latex proteins. The only problem with this glove is that it is more difficult to remove because of its hard texture.

3. Eyeglasses (optional)

You may need a pair of eyeglasses if you have poor eyesight or the numbers in the combination lock are too small to see. You can use your reading glasses if you have them to make setting the numbers easier.

A pair of adjustable eyeglasses would be very handy if you don’t have regular eyeglasses. This will help in providing the focus you need as you look and read the numbers. You can also adjust the focal length you need.

6 Steps to Open a 4-Number Combination Lock


Step 1. Look for your combination number

Your 4-digit combination number is significant in opening your combination lock. Without it, you need to perform more complicated methods to crack the lock. Make sure that you keep it in a safe place.

If you have a Master Lock, you can store your combination number on the manufacturer’s website for safe-keeping and emergency. Don’t forget to wear your non-latex or powder-free gloves if you have sweaty or wet hands to save time and energy.

Read more: Steps to pick a Master lock using a paperclip

Step 2. Set the first digit of the combination

Set the first digit of the combination

In setting the first digit, you need to roll the wheel located at the right side of the lock. You can move it in a clockwise or counterclockwise direction until you find the first digit of your lock combination. You have to ensure that the number is in the middle part of the wheel.

Step 3. Set the second digit of the combination


For the second digit, roll the wheel next to the first digit. You can also move it either in a clockwise or counterclockwise direction, depending on your preference. Keep on moving until you find the second digit of your combination. Check if the digit exactly lines up with the first digit.

Step 4. Set the third digit of the combination


For setting the third digit, you need to repeat the process. Move the wheel next to the second digit, either in a clockwise or counterclockwise direction, until you locate the third digit. To avoid any error, make sure that the third digit lines up with the first and second digit.

Step 5. Set the fourth digit of the combination


The last digit is located at the bottom of the lock. Now, move the wheel in a clockwise or counterclockwise direction until you locate the fourth digit of your combination number. Before you proceed to the next step, check if the digits are perfectly aligned in the middle part of the lock.

Step 6. Pull the shackle to unlock


Once you are done setting the digits of the combination lock, hold the base of the lock firmly then pull the shackle. This would open the lock. However, if it does not open, check if you have the right combination. After checking it out, do the process again.


Are you satisfied with our tutorial on how to open a 4 number combination lock? You don’t need to be confused or ask someone to unlock a combination lock with 4 numbers. By following the steps, you can do it yourself. You also won’t need to pay a lot of money for the locksmith.

You can share your thoughts and experiences with us as you follow each step. We also want to know if you have successfully opened your combination lock. Just leave a comment below. You can also share this article with your friends who are struggling to open their combination locks.

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