Key Cutting & Code Origination Flashcards

What does the term 'bitting' refer to in key cutting?

Answer: The series of cuts along the key blade that operate the lock

Bitting refers to the specific pattern of cuts or depths along a key blade that correspond to the internal components of a lock.

Which code system uses alphanumeric codes that directly represent the depth and spacing of key cuts?

Answer: Direct codes

Direct codes (also called direct reading codes) represent actual cut depths and spacing values that can be used immediately without consulting a code book translation.

On a standard key cutting machine, the 'depth gauge' setting controls which dimension of the cut?

Answer: The vertical depth of each individual cut

The depth gauge on a key cutting machine controls how deep each cut is made into the key blade.

When originating a key from a code for a Schlage lock, the locksmith typically measures from which reference point?

Answer: The shoulder of the key

Schlage keys are measured from the shoulder (the step near the bow) as the reference point for locating cut positions.

A 'code series' in automotive key cutting refers to:

Answer: A range of code numbers assigned to a specific vehicle manufacturer and model group

A code series identifies a group of key codes applicable to a specific manufacturer, model, and year range of vehicles.

What is a 'progression' in the context of key bitting specifications?

Answer: The allowable increment between adjacent cut depths

Progression (or increment) is the standardized difference in depth between consecutive cut values in a key system.

When decoding a key using a key gauge, a locksmith reads the depth values and then must:

Answer: Verify the readings against published bitting specifications for that keyway

After reading depth values with a gauge, the locksmith should verify them against the manufacturer's bitting specifications to confirm accuracy before originating a key.