Cross Lock Yarn Impressioning Key

Product Overview

The Cross Lock Yarn Impressioning Key uses a fine yarn wrap over a cross key blank to read the internal cut positions of a four-way cross cylinder. The blank is wrapped, inserted and rotated, and the yarn compresses at each contact point so the operator can map the depths before filing. It is a traditional, low-damage impressioning method favoured by locksmiths who cut cross keys by hand.

Key Features

• Yarn impressioning method wrapped yarn compresses at contact points to reveal cut depth positions.
• Cross keyway blank the profile is cut for four-way cross cylinders found on residential doors.
• Read then file map every position before cutting, which reduces wasted blanks and repeat visits.
• Non-destructive approach the cylinder is worked rather than forced, so it stays serviceable.
• Hand-filing friendly well suited to bench work with needle files and depth gauges.
• Works with spare yarn re-wrap for repeated passes until the profile is confirmed.

Specifications

Compatibility

• Four-way cross cylinders on residential entrance, interior and bedroom doors
• Cross keyways with a standard central guide boss
• Common Chinese cross lock bodies used in residential and rental property

Wholesale & Shipping

Supplied with spare yarn for repeat work; bulk and mixed wholesale orders ship worldwide with tiered pricing.

Important Notice

For professional locksmith, property management and legitimate service use only. 18+. Not for unauthorized entry.