Key Cutting and Duplication Flashcards

What term describes the process of cutting a key from a manufacturer's numerical code without having an existing key?

Answer: Code cutting

Code cutting uses a bitting code (numerical or alphanumeric) provided by the manufacturer to cut a key to exact factory specifications without needing an original key.

Which part of a key blank determines compatibility with a specific lock brand and model?

Answer: The blade profile (keyway)

The blade profile, also called the keyway or key section, must match the plug's keyway shape to enter the lock cylinder.

On a standard key cutting machine, what component holds the key blank in place during cutting?

Answer: The carriage clamp (vise)

The carriage clamp (vise) secures both the original key and the blank so they move together while the cutter and tracer follow the bitting pattern.

What is the 'shoulder' of a key used for when cutting on a manual key machine?

Answer: It is the reference stop point that aligns the key's cuts to the correct position

The shoulder is the reference stop point on the key that positions the blade so each cut is made at the correct depth and spacing.

Which measurement system do most U.S. key manufacturers use to specify bitting depth?

Answer: Decimal inches

U.S. key manufacturers typically use decimal inch measurements (e.g., 0.025" increments) to specify bitting depths in their bitting codes.

What does the term 'key blank' refer to?

Answer: An uncut key that has the correct profile but no bitting cuts yet

A key blank is an uncut key that matches the correct profile (keyway) for a lock but has not yet been cut to any specific bitting code.

When duplicating a key on a manual duplicating machine, the tracer follows:

Answer: The original key's bitting pattern

The tracer stylus rides along the cuts of the original key, and its movement is mirrored by the cutter wheel to reproduce the same pattern on the blank.