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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 ...
Two warded lock keys and a homemade skeleton key. A skeleton key (also known as a passkey [1]) is a type of master key in which the serrated edge has been removed in such a way that it can open numerous locks, [2] most commonly the warded lock. The term derives from the fact that the key has been reduced to its essential parts. [2]
A safe may be compromised by using a manufacturer-set combination. Known as try-out combinations, these allow an owner initial access to their safe in order to set a new unique one. Sources of try-out combinations exist by manufacturer. Other easy-to-guess combinations include a birthdate, street address, or driver's license number.
Bitting also refers to the combination of key cuts on a bit key for a warded lock or lever tumbler lock. The exact geometry of modern keys is usually described by a code system. [1] The bitting instructs a locksmith how to cut a certain key, to replace a lost key or make an additional copy.
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
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 ...
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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]