How to Open a Master Lock Without a Key: 4 Easy Methods!

how to open a master lock without a key
Are you reading this article while you are lodge outside, unable to enter the sign of the zodiac because you have forgotten your keys, or can not open the box with a standard maestro interlock ? If so, do not worry. I ’ megabyte here to help with helpful information .
I ’ ve been in this situation before. however, I wasn ’ t so lucky. I had to wait for the locksmith for about an hour and had to pay a pretty high gear fee for my negligence. After that incidental, I tried several ways to unlock without keys and equipped them as a life buoy .
indeed, I ’ ll share some helpful information on how to open a headmaster lock without a key. In general, this article will cover four ways that I have selected :

  • Using bolt cutters
  • Using a grinding tool
  • Using a padlock shim
  • Using paperclips

Step-by-Step Processes


1. Break the padlock with bolt cutters

This is a agile manner that people use to open a standard master lock because the diameter of the fetter will not be besides large to make it unmanageable to open .
Step 1: Choose a suitable pair of bolt cutters
not all bang cutters can be used to break a maestro lock without a cardinal. You need to choose a pair of run off cutters, which are about 22 or 24 inches farseeing therefore that you can create adequate leverage for unlocking. The longer the thunderbolt cutters, the more probably you can open locks with large pinion diameters .
Step 2: Fix the lock with pliers or a vise
This mistreat is optional. however, it will help you a lot in restricting the drift of the engage. once fixed, all you need to do is put the cutters in indeed that its two blades fit the pinion .
Step 3: Apply indirect force on the cutters.
Since the cutters are set in a V determine, you need to clamp the sides of the handles so that they come in concert and form a neat line. That ’ s only the theory, consequently, you can stop the work when adequate force is applied and the fetter breaks .

2. Open the lock with a grinding tool

It can be anything to grind metal. For example, a mill or any kind of manual sharpener. This direction is to help you push all the pins inside the lock out .
Step 1: Check the direction of the lock
That ’ s the slope where the shackles will fall off. You can check it by looking at the keyhole. If either side appears in many harsh places, spirit for the slope with signs of serrations on the key .
Step 2: Smooth the side where the shackle will fall off
Since that will be the side where the pins exist, you ’ ll necessitate to grind until you see the pins and they fall out .
Step 3: Open the padlock
now your lock is no longer entangled with any password. All you need to do is find a flat object that can fit into the keyhole. At this placement, you just need to twist slightly, and the shackle will fall off .

3. Open the lock with a padlock shim

here ’ s a room to remove a overcome lock without the key without having to physically destroy your padlock. This method acting is commodious, which I have heard a distribute about. many people have tried and succeeded, so you can consider trying .
Step 1: Prepare tools for the process
A can, pair of scissors, marker, ruler, and couple of pliers are all you ’ ll need. It may seem like a distribute, but most of it is little, which you can easily find in your car or outside the warehouse .
Step 2: Prepare the padlock shim
first, you need to wash the can and cut off its peak and penetrate. At this point, cut any square line from bottom to top to turn the can into an aluminum tabloid. now, you can use pliers to flatten the aluminum plate .
next, rotate the aluminum piece vertically and continue to cut it in half. then, cut a assemble of aluminum into squares with sides about 4-5 curium. Be careful with this tone and make certain they are cut into square pieces using a rule .
last, use a pen to divide a square aluminum plate into two parts. Continue drawing an M condition on one side, but round the corners like the shape of a key alternatively of a regularly pointed triangle. hera, you need to catch the lower part of the letter M to create a space that looks like the human body of two symmetrical keys .
Step 3: Fold the aluminum piece
For the side without the letter M, fold it in one-half and stop at the check separate agate line .
following, fold the two sides of the letter M up and fold the excess back. Adjust it thus that the end of the close up part touches the score telephone line. use pliers to secure the fold parts in place.

Step 4: Place the padlock shim in the shackle hole
first, from the fold slice of aluminum, put the pen in the center to bend the aluminum musical composition until it fits the shackle hole .
plaza the shim into the pinion fix but do not exert besides a lot storm. Distorting the shape of the shim will complicate its working principle. The shackle hole to use is the side where the fetter will fall out .
Try to move the shim in a set from one end to the other. Stay calm air if you don ’ metric ton see motion. This is because it ’ second looking for the latch inside. Continue moving the shim until you hear a chatter indicate that you have successfully opened a chief padlock without a identify .
Some locks will require two shims on either side of the pinion hole to open, which is why I ask you to cut into equal squares rather of one musical composition .

4. Pick the lock with a paperclip

I have tried using two paperclips, but it is quite unmanageable and takes a long time for a founder. therefore, I want to show you an easier and more helpful way that I have learned from a YouTuber with good a paper clip. This is besides a way of opening a master interlock without a key where you don ’ t need to break your lock .
Step 1: Cut one end of the paperclip
Use pliers to cut off one end of the paper clip where there is no round graze .
Step 2: Place the two sticks on either side of the paperclip to fit snugly into the lock.
Choose a stapler that is belittled adequate to fit into the keyhole. If it ’ sulfur bigger or smaller, it can not put adequate pressure on the pins inside .
Step 3: Use a screwdriver to unlock
At this moment, it will act as a lever for the lock. Use a screwdriver with a crossbar alternatively of a cross, which is small enough to be inserted into the keyhole. then, with slender movements, you will be able to open the lock when the pinion comes out .
Pro-tips :

  • Check the lock’s model number and manufacturer on its body or bottom, which will be important information when you cannot open the lock yourself and need help from a locksmith.
  • If you get a chance, order a transparent padlock so you can understand its mechanism, which will make it easier to locate the parts in the event of a bad situation.


There are many ways to open a classic lock because its security is not eminent. however, knowing the theory will not open the lock in, you will besides need to have lots of patience and rehearse. Having your master lock lost key is annoying, sol when you successfully open the lock, equip yourself with methods to prevent the recurrence .
In this article on how to open a master lock without a identify, I have summarized four ways to unlock a master lock without a key, which I have tried and succeeded in. So, I want to share how to do it. If you want to know more content on a like topic, feel rid to leave a gloss or send us an e-mail .

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