Active Retainer - Answers a cylinder retaining mechanism which requires the plug be rotated before the
cylinder be removed
Bow Stop - Answers a type of stop located near the key bow
Decode - Answers to determine a key combination by physical measurement of a key and/or cylinder
without removing the tumblers
Decoder Gauge - Answers a measuring device which helps determine the combination of a lock without
removing the tumblers
Depth Key set - Answers a set of keys used to make a code original key on a key duplicating machine to a
lock manufacturers given set of key bitting specifications. Each key is cut with the correct spacing to one
depth only in all bitting positions, with one key for each depth
Impression Technique - Answers a means of fitting a key directly to a locked cylinder by manipulating a
blank in the keyway and cutting the blank where the tumblers have made marks
Key pull(s) - Answers a lock specification which indicates by quantity and orientation the position(s) at
which a key may be withdrawn
Key Pull Position - Answers any position, of the cylinder plug at which the key can be removed
Primary Key - Answers a key, which operates the ignition lock on a vehicle. It may or may not also
operate some or all the other locks on the vehicle
Progression - Answers a logical sequence of selecting possible key bittings, usually in numerical order
from the key bitting array
Resistor Pellet - Answers the encapsulated resistor with exposed contacts installed in a key, such as that
for VATS
Secondary key - Answers a key which operates certain locks on a vehicle, but not the ignition lock
Tip Stop - Answers a type of stop located near the tip of the key
Try-out key - Answers a manipulation key which is usually part of a set, used for a specific series,
keyway, and/or brand of lock
Valet Key - Answers an automotive key that operates all locks except storage compartments, on a
vehicle where there is also a master key to operate all locksd
VATS - Answers Vehicle Anti-Theft System
Vehicle Anti-Theft System - Answers an electronic system in some General Motors vehicles which uses a
resistor pellet of varying value imbedded in a mechanical ignition key