KEY FEATURES BS EN 1303 Fire door 30-60 Anti-drill Anti-pick Break off system Keying Service Keyed to differ: Each lock is opened by its own key Keyed alike: All cylinders in the set are opened by the same key Master key: A master key system is where all cylinder locks are opened by a single key but each of the cylinder locks are opened by their own key often referred to as the slave, change or differ key
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