Locksmith how-to
How to Design a Simple Master Key System
Master systems control access.
Quick answer
Master systems control access. In short: list; plan; choose, then complete the remaining steps below.
Step by step
List doors and users.
Plan levels.
Choose a keyway.
Calculate bitting.
Pin cylinders.
Document securely.
Safety reminders for locksmiths
- Verify ownership
- Protect key records
- Drill safely
- Drive safely at night
Key terms
Rekey · Pin tumbler · Master key system · Deadbolt · Mortise lock · Key blank: see the full locksmith glossary.