I have a job changing the locks on a pair of heavy duty doors to a high security area.
They are Assa units with handles and a screw in Ruko cylinder. This all connects to a series of linked bolts going in all directions.
Just wondered how hard it will be to change these cylinders?
They appear to be screw in type at first glance, just want to make sure theres no unusual difference before i order parts.
Il try find a picture ...
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