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.