Master Key System Calculator

Master Key System Calculator

Project & System Configuration

0-9

Grand Master Key Setup

Sub-Master Setup

(updates automatically)

System Output

Key Name Key Type Bitting Bottom Pins Master Pins Top Pins Warnings

Pin Stack Diagram - Example Key Stack

Shows how GMK, Sub-Master, and Change Key create multiple shear lines in a single lock.

Top Pins (white numbers) Master Pins Bottom Pins (white numbers) Shear Lines (GMK/SM/CK)