(Bundle of 5) HQ LOCK High Security Rim / Mortise – 1″ – US3 – Polished Brass

• Bundle of 5
• 5 Keys
• High-Security Cylinder
• Key Duplication Card
• Colored Inserts

High-Security cylinders have a special telescopic pin tumbler mechanism with internal and external pins.

Steel inserts with high drill resistance
High pick and bumping resistance

A spring-loaded pin placed inside the cylinder plug, which produces a “virtual combination” when the key with the floating pin is inserted.