Most Master Locks are very easy to pick and are considered one of the easiest beginner locks when practicing lock picking. They have 4 standard pins and a wide-open keyway that can be quickly bypassed in many ways including picking them with improvised tools such as paperclips, bobby pins, or even a chicken bone.
Most locks use between six and eight pins, although some use as few as four or as many as ten. The devices have been widely used on vending machines, elevators, public computers, and bicycle locks.
The easiest way to pick a Master Lock is by raking it. This is done by first tensioning the core and using a lock pick to bump all of the pins to the shear line. Master Locks can also be picked with a variety of makeshift tools including paperclips, bobby pins, soda cans, and even chicken bones.
The Master Lock 9140EURD has the following specifications: 40mm aluminium padlock - 21mm hardened steel shackle, 6mm diameter - 4-pins.
Try bolt cutters.
This will not work on most master locks, as they are made of case hardened steel.
Turns out, any Master Lock can easily be broken into with just a small hammer. As this video illustrates, all you need to do is tap the side of a Master Lock with a hammer to get it to open, no key, no combination required.
To open combination locks without a code, start by pulling up on the dial and turning it clockwise until you hear the lock click. Then, check what number you're at, add 5 to that number, and write it down. Next, set the dial to that number and turn it counterclockwise until you hear it click again.
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Most Night Latches (Yale Type Locks) are 5 pin but more and more common now, is 6 pin cylinders. This one extra pin makes a vast amount of difference to the security of the lock.
Aside from the number of cuts on the key, it's simple to determine if a key is a 5-pin or 6-pin key at a glance: A 6-pin key has a longer keystop on top. A 5-pin plug can be repinned to accomodate a 6-pin key. In Figure 11, notice that the 0-position on the key is not used.
In lock: Development of modern types. … in England, patented a double-acting tumbler lock. A tumbler is a lever, or pawl, that falls into a slot in the bolt and prevents it being moved until it is raised by the key to exactly the right height out of the slot; the key then slides the bolt.
Master key: The master key can open all locks you have in your residential or commercial property.
Is there a master key for all locks? For certain systems of locks, yes. A master key is specifically designed to unlock a given locking system. Having one key for safekeeping can help open a lock in case its paired key is lost or damaged.
Insert the two points of the bobby pin into the lock. Press the bobby pin forward into the lock— depending on the door, simple forward pressure can be enough to open the lock. Picker of Locks says to keep even pressure on the pin as you elevate each lock. Using a second pin that is straightened may help.
ABUS Granit™: one of the world's most secure padlocks with a tensile resistance of over six tonnes. Granit locks have a tensile resistance of over six tonnes, making it almost impossible for attackers to release the shackle from the lock body by force.
One of the most common (and easiest to pick) locks is the pin-and-tumbler, which is a type of cylinder lock. Cylinder locks are used in most deadbolts. When picking a pin-and-tumbler lock, put the tension wrench in the keyhole and turn it as if it was a key.
All that is required is that you get hold of a bolt cutter to cut the master lock. If you do not have a bolt cutter, you can get that or leave the task for professionals to do. Please note that cutting a master lock with a bolt cutter might not work on most master locks because they are made of case-hardened steel.