by Eldoc » 18 May 2005 11:34
Hi vector40
we normally use a tool named "defender" to protect the cylinder in the external site of the door (i'm talking about a european profile cylinder). Probably you yet know it, however it is like a knob, made to cover the cylinder, with 2 screws in the inner site, to block it with 2 holes across the lock and the door. Screws blocked form the internal site of the door of course. Some of these "defender" have a ball bearing in the screw hole, as anti-drill and the most sofisticated have have another protection to rend more difficult to try to drill the cylinder directly.
I'm old in my profession, but new here; I'm very interested to know better this interesting forum.
Bye
Eldoc