We have updated The Professional Locksmith Dictionary in the Tools section using the terms and definition approved via the last peer review. These include:

  • blade height n. 1. in a cylinder key, the distance from the bottom of the blade to the top of the uncut surface, 2. in a multiply bitted key, the distance from a registration point to the top of the uncut surface
  • blade length n. in a cylinder key, the distance from the tip of the key to the bow stop or the bow
  • blade width n. in a cylinder key, the distance from one non-bitted surface to the opposite non-bitted surface
  • burglar chest n. a small safe, typically with a UL rating, designed to resist burglary attempts
  • buzzer plate n. an automotive ignition component that triggers an alarm when the key is in the ignition and a door is open without the engine running
  • CAI abb. the title ‘Certified ACE Instructor’ as awarded by ALOA
  • CAL abb. the title ‘Certified Automotive Locksmith’ as awarded by ALOA
  • CEL abb. the title ‘Certified Electronics Locksmith’ as awarded by ALOA
  • CFDI abb. the title ‘Certified Fire Door Inspector’ as awarded by ALOA
  • CFL abb. the title ‘Certified Forensic Locksmith’ as awarded by ALOA, may be followed by a specialty name
  • CHI abb. the title ‘Certified Hardware Installer’ as awarded by ALOA
  • chip key n. one which incorporates or includes an electronic component that communicates with another vehicle component to allow or deny starting; see also, Vehicle Anti-Theft System, transponder key, remote head key, integrated head key
  • CLL abb. the title ‘Certified Licensed Locksmith’ as awarded by ALOA for specific states, state name typically can follow the initials
  • clone key n. one that has a transponder that replicates another transponder code
  • cloner n. a device that may be used to replicate an electronic copy of a transponder
  • CMEL abb. the title ‘Certified Master Electronics Locksmith’ as awarded by ALOA
  • CMAL abb. the title ‘Certified Master Automotive Locksmith’ as awarded by ALOA
  • direct communication n. an access control system which relies solely on information provided at that time from the central computer to grant or deny access
  • distributed intelligence n. an online access control system which is capable of maintaining authorization data locally in case of communication delays or failure
  • ECM abb. Electronic Control Module
  • electronic key n. any key that has an electronic component
  • electronic control module n. an automobile computer that controls all electronic functions of the vehicle
  • flash v. to program an ECM
  • fob n. an object or remote, other than a key, which attaches to a key ring, key or key chain
  • fob key n. a vehicle remote with an attached key blade, and/or other electronic features, which allows the user to start the engine and drive the vehicle
  • grid chart n. a matrix based layout for organizing access points and their corresponding access needs, used primarily in master keying and access control
  • ICML abb. the title ‘Institutional Certified Master Locksmith’ as awarded by ALOA
  • ICPL abb. the title ‘Institutional Certified Professional Locksmith’ as awarded by ALOA
  • ICRL abb. the title ‘Institutional Certified Registered Locksmith’ as awarded by ALOA
  • immobilizer n. an anti-theft device in an automobile, which prevents starting or driving the vehicle unless an appropriate electronic credential is present
  • incidental master key n. a key combination which operates a cylinder combinated to two or more keys from different levels in a master key system
  • integrated head key n. a remote head fob key that contains a transponder
  • key changes n. the number of different combinations available to use as individual keys for a particular cylinder/lock
  • LH Horizontal v. safe lock mounting when the lock is mounted with the lock bolt pointing to the left when viewed from inside the safe or vault
  • local code precedence see Authority Having Jurisdiction (AHJ)
  • *locksmith n. a person with the knowledge and ability to select, install, service and/or bypass the components of electrical or mechanical locks
  • mocksmith n. an individual who falsely presents himself as a locksmith
  • money chest n. a small safe, typically with a UL rating, designed to resist burglary attempts
  • on-line system n. an access control layout in which a central computer communicates with panels near the openings using either distributed intelligence or direct communication
  • open bottom combination lock n. a combination lock with an opening in the bottom to allow direct entry of a gravity, or pressure, operated lever when the correct combination is dialed
  • precut position n. a specific depth of cut on a key blank that causes otherwise properly cut keys to operate a specific secondary device within the lock, such as a control lug
  • pressure system n. a bolt system that consists of one or more bars that apply closing force to the door as they are rotated into a curved strike
  • relock pin n. a typically spring loaded bolt, designed to engage a safe’s boltwork, when the safe lock is disturbed, and prevent the boltwork from operating
  • remote n. a device for permitting the control of functions, of a lock device or alarm, at a distance
  • remote head key n. a mechanical fob key that has a remote as the bow
  • RH Horizontal v. safe lock mounting when the lock is mounted with the lock bolt pointing to the right when viewed from inside the safe or vault
  • selective change key n. an incidental key whose combination is taken from an individual key and the unique bitting of a selective master key
  • sliding guard tumbler n. a guard tumbler in a single nose safe deposit lock that allows an operating key to unlock after the guard key is turned and removed
  • smart key adj. a key that has a proximity device function to operate a lock
  • sounding device n. an audible annunciator that, when activated, indicates a situation requiring action
  • theoretical master key n. an incidental master key combination that can be cut to operate more than one lock keyed to a MK and a CK in a system
  • time zone n. an access control or alarm condition or authorization rendered at, and limited to, specific regularly occurring periods
  • timing mark n. a mark, usually center punched, on two separate gears or parts to identify correct alignment of those parts
  • turtle prep n. a door preparation using six smaller holes around the face bore, intended to provide for many cylindrical Lever Lock installation layouts, so named because it resembles a creature of the same name
  • ultrasonic motion detector n. a device which utilizes disturbances in sound patterns outside the audible range to determine movement in a protected area
  • valet cut n. a precut position of an automotive key blank, usually at the tip , that causes a properly cut key to operate only the ignition and door

We have also included a link to the 2019 Peer Review.

2019-08-07T07:54:39-04:00 August 7th, 2019|All, Locksmith Terminology, Tools Update|

About the Author:

I am a locksmith working in Atlanta, GA, USA. I am a member of ALOA, the Clearstar Security Network, Locksmith Nation, and the Locksmith Security Association of Michigan. Email me here.

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