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The Technical Evolution of the Lock
9.2 Pull-out protection

Profile cylinders can be equipped with armoured drilling protection for high risk doors.

Hard metal pins or other elements are arranged in an offset position to one another in pairs in the core area in the immediate vicinity of the keyways, in addition to the types of drill protection already described.

Additional technical extras are offered by some suppliers in this pull-out protected version, such as armoring rings, locking jaws, etc. These are intended to protect the cylinder housing from being pulled out of the brace or lock.