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Master pin In a pin tumbler lock, a master pin is an optional, usually short, disk-like pin placed between the top and bottom pins. Its purpose is to allow two differently-cut keys to open the lock. Master pins are also called master wafers. Plug The plug is the part of a cylinder lock which is designed to turn when a key is inserted. Plug follower
In 2012, Master Lock introduced a line of combination padlocks called the dialSpeed. [17] The dialSpeed lock is battery-operated, has a lit face, and features multiple user-programmable combinations. It has a master unlocking code that can be accessed through the company web site. [17] In 2014, Master Lock acquired SentrySafe for $117.5 million ...
These are codes that require a chart or computer program to translate the blind code to a bitting code, which is used to create the actual key. Most key codes are blind codes, and publication of code books or software is restricted to licensed locksmiths in most jurisdictions for security reasons.
An arrow lock is a lock with standard dimensions used by the United States Postal Service for mail carriers to access collection boxes, outdoor parcel lockers, cluster box units, and apartment mailbox panels. Arrow locks are unlocked through the use of a corresponding arrow key. Arrow locks are also referred to as "Master Access Locks" [1]
A Wordlock letter combination lock.. A combination lock is a type of locking device in which a sequence of symbols, usually numbers, is used to open the lock. The sequence may be entered using a single rotating dial which interacts with several discs or cams, by using a set of several rotating discs with inscribed symbols which directly interact with the locking mechanism, or through an ...
For example, master keyed pin tumbler locks often have two shear points at each pin position, one for the change key and one for the master key. A far more secure (and more expensive) system has two cylinders in each lock, one for the change key and one for the master key. Master keyed lock systems generally reduce overall security. [2]
Lock picking is the practice of unlocking a lock by manipulating the components of the lock device without the original key. Although lock-picking can be associated with criminal intent , it is an essential skill for the legitimate profession of locksmithing , and is also pursued by law-abiding citizens as a useful skill to learn, or simply as ...
Lock bumping is a trend in burglaries, [10] [11] as the technique can make it easy and fast to break into homes without needing too much special equipment or leaving any trace of forced entry. It works almost as well as having a key, [ 12 ] [ 13 ] and a set of ten rapping keys can make the criminals capable of opening 90% of common tumbler locks.