angularly bitted key
- n.a key which has cuts made into the blade at various degrees of rotation from the perpendicular
Locksmith dictionary . 2014.
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Bitting — A bitting is the part of the key that actually engages the tumblers to activate the lock. Bittings are often represented as a code which instructs how a key is to be cut by a locksmith. The bitting is usually a series of integers (e.g. 372164)… … Wikipedia