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Master Key Systems & Software

Professional Master Key Lock System Solutions

A master key lock system is a strategic security solution that allows multiple locks to be opened by different individual keys while also permitting access with a single master key. Businesses, property managers, schools, and facilities often rely on structured keying systems to control access efficiently without carrying dozens of keys. At CLK Supplies, you can find reliable master keys for sale and professional-grade keying solutions designed for locksmiths and security professionals. 

Whether you're building a simple hierarchy or a complex multi-level system, choosing the best master key setup ensures convenient access management, improved security, and simplified key control. If you are wondering how to get a master key, the process typically involves setting up a compatible lock cylinder and pinning configuration within a designed key hierarchy. A well-designed system ensures authorized access while preventing unauthorized duplication or entry.

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1 Master Key 100 Change Keys On A KW1 Key #100 Master Key Systems CLK
$ 111.66 - $ 111.66
$ 111.66
$ 111.66 - $ 111.66
$ 111.66

1 Master Key 100 Change Keys On A KW1 Key #100

LockVoy
In stock

1 Master Key 100 Change Keys On A KW1 Key #100 This Set includes: 1 Master Key 100 Change Keys Uses Bottom Pin Numbers 1-7 All Keys are Cut and Nu...

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$ 111.66 - $ 111.66
$ 111.66
$ 111.66 - $ 111.66
$ 111.66
1 Master Key 100 Change Keys On A SC1 Key #100 Master Key Systems CLK
$ 111.66 - $ 111.66
$ 111.66
$ 111.66 - $ 111.66
$ 111.66

1 Master Key 100 Change Keys On A SC1 Key #100

LockVoy
In stock

1 Master Key 100 Change Keys On A SC1 Key #100 This Set includes: 1 Master Key 100 Change Keys Uses Bottom Pin Numbers 1-7 All Keys are Cut and Nu...

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$ 111.66 - $ 111.66
$ 111.66
$ 111.66 - $ 111.66
$ 111.66
1 Master Key 25 Change Keys On A AM3 Padlock Key Master Key Systems CLK
$ 35.53 - $ 35.53
$ 35.53
$ 35.53 - $ 35.53
$ 35.53

1 Master Key 25 Change Keys On A AM3 Padlock Key

LockVoy
In stock

This Set includes: All on a AM3 Key Blank 1 Master Key 25 Change Keys all cut and numbered with a master key Chart so when you get this in the mail...

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$ 35.53 - $ 35.53
$ 35.53
$ 35.53 - $ 35.53
$ 35.53
1 Master Key 25 Change Keys On A KW1 Key #39 Master Key Systems CLK
$ 31.47 - $ 31.47
$ 31.47
$ 31.47 - $ 31.47
$ 31.47

1 Master Key 25 Change Keys On A KW1 Key #39

LockVoy
In stock

This Set includes: All on a KW1 Key Blank 1 Master Key 25 Change Keys all cut and numbered with a master key Chart so when you get this in the mail...

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$ 31.47 - $ 31.47
$ 31.47
$ 31.47 - $ 31.47
$ 31.47
1 Master Key 25 Change Keys On A KW1 Key #40 Master Key Systems CLK
$ 31.47 - $ 31.47
$ 31.47
$ 31.47 - $ 31.47
$ 31.47

1 Master Key 25 Change Keys On A KW1 Key #40

LockVoy
In stock

This Set includes: All on a KW1 Key Blank 1 Master Key 25 Change Keys all cut and numbered with a master key Chart so when you get this in the mail...

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$ 31.47 - $ 31.47
$ 31.47
$ 31.47 - $ 31.47
$ 31.47
1 Master Key 25 Change Keys On A SC1 Key #39 Master Key Systems CLK
$ 31.47 - $ 31.47
$ 31.47
$ 31.47 - $ 31.47
$ 31.47

1 Master Key 25 Change Keys On A SC1 Key #39

LockVoy
In stock

This Set includes: All on a SC1 Key Blank 1 Master Key 25 Change Keys all cut and numbered with a master key Chart so when you get this in the mail...

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$ 31.47 - $ 31.47
$ 31.47
$ 31.47 - $ 31.47
$ 31.47
1 Master Key 25 Change Keys On A SC1 Key #40 Master Key Systems CLK
$ 31.47 - $ 31.47
$ 31.47
$ 31.47 - $ 31.47
$ 31.47

1 Master Key 25 Change Keys On A SC1 Key #40

LockVoy
In stock

This Set includes: All on a SC1 Key Blank 1 Master Key 25 Change Keys all cut and numbered with a master key Chart so when you get this in the mail...

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$ 31.47 - $ 31.47
$ 31.47
$ 31.47 - $ 31.47
$ 31.47
1 Master Key 50 Change Keys On A KW1 Key #44 Master Key Systems CLK
$ 60.90 - $ 60.90
$ 60.90
$ 60.90 - $ 60.90
$ 60.90

1 Master Key 50 Change Keys On A KW1 Key #44

LockVoy
In stock

This Set includes: All on a KW1 Key Blank 1 Master Key 50 Change Keys all cut and numbered with a master key Chart so when you get this in the mail...

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$ 60.90 - $ 60.90
$ 60.90
$ 60.90 - $ 60.90
$ 60.90
$ 50.75 - $ 50.75
$ 50.75
$ 50.75 - $ 50.75
$ 50.75

1 Master Key 50 Change Keys On A SC1 Key

LockVoy
In stock

This Set includes: All on a SC1 Key Blank 1 Master Key 50 Change Keys all cut and numbered with a master key Chart so when you get this in the mail...

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$ 50.75 - $ 50.75
$ 50.75
$ 50.75 - $ 50.75
$ 50.75
1 Master Key 50 Change Keys On A SC1 Key #44 Master Key Systems CLK
$ 60.90 - $ 60.90
$ 60.90
$ 60.90 - $ 60.90
$ 60.90

1 Master Key 50 Change Keys On A SC1 Key #44

LockVoy
In stock

This Set includes: All on a SC1 Key Blank 1 Master Key 50 Change Keys all cut and numbered with a master key Chart so when you get this in the mail...

View full details
$ 60.90 - $ 60.90
$ 60.90
$ 60.90 - $ 60.90
$ 60.90
Aero IC Core Masterkeying Software For A-2,A-3 And A-4 Master Keying Software Aero Lock
Aero IC Core Masterkeying Software For A-2,A-3 And A-4 Locksmith Software Aero Lock
$ 106.70 - $ 106.70
$ 106.70
$ 106.70 - $ 106.70
$ 106.70

Aero IC Core Masterkeying Software For A-2,A-3 And A-4

Aero Lock
In stock

Aero IC Core Masterkeying Software For A-2,A-3 And A-4  Generate Master Key systems for SFIC  Enter your own master key or auto generate one    ...

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$ 106.70 - $ 106.70
$ 106.70
$ 106.70 - $ 106.70
$ 106.70
Aero Key Master Keying Software Master Keying Software Aero Lock
Aero Key Master Keying Software Locksmith Software Aero Lock
$ 106.70 - $ 106.70
$ 106.70
$ 106.70 - $ 106.70
$ 106.70

Aero Key Master Keying Software

Aero Lock
In stock

Aero Key Master Keying Software This software was designed for locksmiths who want the ability to create simple and easy to use master key systems!...

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$ 106.70 - $ 106.70
$ 106.70
$ 106.70 - $ 106.70
$ 106.70
FasterMaster with CD Backup and Printed Documentation Locksmith Software Rabbitsoft
$ 304.52 - $ 304.52
$ 304.52
$ 304.52 - $ 304.52
$ 304.52

FasterMaster with CD Backup and Printed Documentation

Rabbitsoft

FasterMaster Masterkeying Software Now master keying can be made easier for those locksmiths who don't have the time to sit down and develop a syst...

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$ 304.52 - $ 304.52
$ 304.52
$ 304.52 - $ 304.52
$ 304.52
HPC MasterKing Software Locksmith Software Hudson-ESP-HPC
$ 340.68 - $ 340.68
$ 340.68
$ 340.68 - $ 340.68
$ 340.68

HPC MasterKing Software

Hudson-ESP-HPC
Only 1 left!

MasterKing Software ***Only CD format Basic Features: Multi-User/Level Password Security Modifiable Report Format Allows You to Print Only What Y...

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$ 340.68 - $ 340.68
$ 340.68
$ 340.68 - $ 340.68
$ 340.68
Master Key Set Up System: 1 Master 2 Sub Masters 25 Change Keys each Sub Master System #25 Master Key Systems CLK
$ 20.30 - $ 20.30
$ 20.30
$ 20.30 - $ 20.30
$ 20.30

Master Key Set Up System: 1 Master 2 Sub Masters 25 Change Keys each Sub Master System #25

LockVoy
In stock

 Key Set Up System:  Sub Master System # 15 This is a Master Key System for 5 Pin Lock Systems Depths Used: 1-7 Spaces: 5 What Types of locks can I...

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$ 20.30 - $ 20.30
$ 20.30
$ 20.30 - $ 20.30
$ 20.30
Master Key Set Up System: 1 Master 25 Change Keys System # 10 Master Key Systems CLK
$ 10.15 - $ 10.15
$ 10.15
$ 10.15 - $ 10.15
$ 10.15

Master Key Set Up System: 1 Master 25 Change Keys System # 10

LockVoy
In stock

This is a Master Key System for 5 Pin Lock Systems Depths Used: 1-7 Spaces: 5 What Types of locks can I use on this set? Kwikset Schlage Weiser Sar...

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$ 10.15 - $ 10.15
$ 10.15
$ 10.15 - $ 10.15
$ 10.15
Master Key Set Up System: 1 Master 40 Change Keys System # 20 Master Key Systems CLK
$ 15.23 - $ 15.23
$ 15.23
$ 15.23 - $ 15.23
$ 15.23

Master Key Set Up System: 1 Master 40 Change Keys System # 20

LockVoy
In stock

This is a Master Key System for 5 Pin Lock Systems Depths Used: 1-7 Spaces: 5 What Types of locks can I use on this set? Kwikset Schlage Weiser Sar...

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$ 15.23 - $ 15.23
$ 15.23
$ 15.23 - $ 15.23
$ 15.23
Master Key Set Up System: 1 Master 50 Change Keys System # 21 Master Key Systems CLK
$ 15.23 - $ 15.23
$ 15.23
$ 15.23 - $ 15.23
$ 15.23

Master Key Set Up System: 1 Master 50 Change Keys System # 21

LockVoy
In stock

Master Key Set Up System: 1 Master 50 Change Keys System # 21 This is a Master Key System Chart for 5 Pin Lock Systems Depths Used: 1-7 Spaces: 5 W...

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$ 15.23 - $ 15.23
$ 15.23
$ 15.23 - $ 15.23
$ 15.23
Master Key Setup System: 1 Master 25 Change Keys System # 11 Master Key Systems CLK
$ 10.15 - $ 10.15
$ 10.15
$ 10.15 - $ 10.15
$ 10.15

Master Key Setup System: 1 Master 25 Change Keys System # 11

LockVoy
In stock

Master Key Setup System: 1 Master 25 Change Keys System # 11 If you are looking for a master keying chart you are in the right place! This chart wi...

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$ 10.15 - $ 10.15
$ 10.15
$ 10.15 - $ 10.15
$ 10.15
Master Key Setup System: 1 Master 25 Change Keys System # 12 Master Key Systems CLK
$ 10.15 - $ 10.15
$ 10.15
$ 10.15 - $ 10.15
$ 10.15

Master Key Setup System: 1 Master 25 Change Keys System # 12

LockVoy
In stock

Master Key Setup System: 1 Master 25 Change Keys System # 12 If you are looking for a master keying chart you are in the right place! This chart wi...

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$ 10.15 - $ 10.15
$ 10.15
$ 10.15 - $ 10.15
$ 10.15

FAQs

What is the master key?

A master key is a special key designed to open multiple locks that are part of a master key lock system. Each lock has its own individual key, but the master key works across all of them through a carefully designed pinning and keying system.

How do master keys work?

Master keys work by using additional pin combinations inside a lock cylinder. These extra pin levels allow both the individual key and the master key to align the pins properly, enabling the lock to turn. This design creates controlled access across multiple locks.

How to open a master lock without a key?

Opening a lock without a key should only be performed by trained locksmiths or authorized professionals. Locksmiths may use specialized tools, lock picking techniques, or key decoding methods to safely open locks while preventing damage to the locking mechanism or door hardware.

Are all master lock keys same?

No, master lock keys are not the same. Each master key lock system is uniquely designed with specific pin configurations and key cuts. Even systems from the same manufacturer differ, ensuring that only the correct master key operates the intended locks.