Classroom Cylinder is a Euro profile cylinder with a one way thumbturn mechanism, disenabling the option of opening from the insidewhile eliminating any possibility of preventing entrance by holding the thumb-turn.
360° rotation by operating key or thumb turn to open only.
Materials:: Body and plug: Brass.
Pins: telescopic pin system made of stainless steel,
allows the accurate master complex systems.
Cylinder is protected by four anti-drilling pins.