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How does a master key system work?

Think of master key systems in relation to your business’ organisation chart. At the top of the chart is the CEO. They have access to information and oversee all aspects of the business. In a master key system this is referred to as The Great Grand Master Key. This key can access and unlock all of the locks across the business. If it is a multi-site business (eg. many retail stores or offices) it can open all of the premises.

A Grand Master Key has some limited access across the business. It may have access to open all doors on the ground floor. You might have a second grand master key that unlocks the 1st floor. It could also be that the GMA-A opens all locks of your shop in Preston, but GMA-B only unlocks your Fitzroy store. The GGMA has full access to both of these store locations.

The Master Key has access to certain parts of the building. You may have MK-1 for your IT Manager. They can open all server room doors and computer offices, however the HR Manager’s MK-2 can’t. Both of their keys can also only work in the Preston store and not the one in Fitzroy.

It is best that a master key systems’ hierarchy is designed and developed to suit each individual business and their requirements.

Why a restricted master key system?

Restricted master key systems have a registered design. This means that only the locksmith you have chosen to keep your property secure is able to create and duplicate the keys with your unique and individual profile. Security Edge keys have a registered design until 2026. Protecting you not just today but for years to come.

Independently Tested and Rated

More Info
Security Edge products were independently tested and rated by NATA. All products have received the world recognised accreditation, AS 4145.2

  • Resistance to picking – SC8
  • Resistance to impression – SC8
  • Resistance to bumping – SC8
  • Resistance to drilling – SC8
  • Resistance of plug to pull force – SC5
  • Resistance of plug to torque – SC7
  • Cylinder durability – D8 (114286 cycles)
  • Key Strength – SC8

Master System Re-Key

More Info
Security Edge products were independently tested and rated by NATA. All products have received the world recognised accreditation, AS 4145.2

  • Resistance to picking – SC8
  • Resistance to impression – SC8
  • Resistance to bumping – SC8
  • Resistance to drilling – SC8
  • Resistance of plug to pull force – SC5
  • Resistance of plug to torque – SC7
  • Cylinder durability – D8 (114286 cycles)
  • Key Strength – SC8

Master System Re-Key

More Info
Security Edge products were independently tested and rated by NATA. All products have received the world recognised accreditation, AS 4145.2

  • Resistance to picking – SC8
  • Resistance to impression – SC8
  • Resistance to bumping – SC8
  • Resistance to drilling – SC8
  • Resistance of plug to pull force – SC5
  • Resistance of plug to torque – SC7
  • Cylinder durability – D8 (114286 cycles)
  • Key Strength – SC8
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