Bitting (key)

Bitting for pin tumbler locks:
– Bitting is the depth of key cuts on a cylinder key.
– It is often expressed as a number.
– The bitting instructs a locksmith how to cut a key.
– It is usually translated from a key code chart or bitting code list.
– Each digit in the bitting corresponds to a location on the key blank.

Bitting for warded locks or lever tumbler locks:
– Bitting refers to the combination of key cuts on a bit key.
– The exact geometry of modern keys is described by a code system.
– The bitting is usually a series of integers.
– It is translated to settings on key machines.
– The bitting indicates the necessary depth of the cut.

Proprietary code systems:
– Many lock companies use their own code system.
– The bitting sequence can be from bow-to-tip or tip-to-bow.
– A smaller number is typically a shallower cut on the key.
– Assa bitting codes are reversed.
– Eagle Lock Company used letters exclusively for bitting codes.

Angularly bitted keys:
– Angularly bitted keys are used in high-security locking systems.
– They engage chisel-pointed pins.
– The cuts are designed to lift each tumbler to the shear line.
– They rotate the tumblers to a specific angle.
– Angularly bitted keys are used in Medeco and Emhart locks.

Related topics:
– Keys by code is a related topic.
– Warded locks are also related to bitting.
– Understanding key bitting specifications is important.
– Bitting codes are used to make additional copies of keys.
– Bitting is an essential aspect of locksmithing.Sources: