A master key system references a group of locks, and the keys that operate them, which are related in a hierarchy with one key at the 'top', which will fit into a large number of locks; and a large number of keys at the 'bottom' which may only fit into one lock. The fewer master key levels, the more secure the system.
Master keys and change keys
When lock rekeying into a master key system, two keys are created: Change key: This key can open the master lock, but only the master lock. It cannot be used inside any other locks you have. Master key: The master key can open all locks you have in your residential or commercial property.
Most Master Locks are very easy to pick and are considered one of the easiest beginner locks when practicing lock picking. They have four 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.
Occasionally, someone will want the locks they use in their institution, organization etc. to have “mastered” locks. This means that although all the individual locks have individual keys, there's also a “master” key that will open them all.
Bump keys are specially cut keys that can bypass the security mechanisms built into traditional pin and tumbler locks. Bump keys are also referred to as “999 keys” because all of their ridges are cut to the maximum depth (999) in a key-making machine.
You can not cut a Master lock using a bolt cutter. Since Master locks are made of hardened steel, using a standard cutter will be insufficient for this task. If there's a shackle, you can use the bolt cutter to get to the Master lock.
In the world of lock manufacturers, the name Abloy holds an exalted reputation. Their series of Abloy Protect 2 locks are near unpickable due to two key factors. The locks have advanced manipulation resistance, making them impossible to be picked.
What should I do? If you recorded the key number, you may be able to get replacement keys from a hardware store or locksmith. If you didn't record the number, contact a locksmith to remove your lock. Please note there will likely be a fee for this service.
Master Key Systems Are Created on Restricted Keyways
Restricted keyways are patented, which means that they can't be sold on the open market and can't be copied at a hardware store or commercial location. Instead, master keys can only be copied with your authorization by your key provider.
Each lock is opened by its own unique key that does not open any other lock in the set. Keyed Different is the standard keying default on Master Lock and American Lock padlocks.
No, the police don't have “master keys” to anyone's home, unless that person leaves such a key in their possession or someone who knows that person provides them with such a key.
You can get new keys cut at the local hardware store, but locksmiths can typically cut specialty keys such as two-sided, dimpled, and master keys for $1–$10 per key.
High-security Master Key systems are used in some of the best-protected areas in the world, and for a good reason: They are highly safe and secure. A single “master key” is used to operate all locks, while other keys will operate specific locks depending on the amount of access granted.
Using specialised lock picks it is possible to manipulate almost every padlock to open. Due to their size, smaller padlocks contain fewer pins which inevitably make them easier to align and therefore pick. A 30mm padlock, for example, would contain about 3-4 pins. However, a 50mm padlock could contain 4-7 pins.
The factory-set combination is 0-0-0. Push in the button at the bottom of the lock. While holding in the button, turn the dials to your new combination. Once the dials are set to your new combination, release the button.