Drilling protection (AB = 0):
In locking cylinders of the above systems, the first pair of pins is made of steel and there is a carbide pin in the cylinder body as standard.
Drilling protection (AB = 1): medium safety requirements
For medium safety requirements, one carbide pin in the cylinder body is combined with several carbide elements in the cylinder core.
Drilling protection (AB = 2): increased safety requirements
For increased safety requirements, reinforced drilling protection is achieved by additional carbide pins inserted in the cylinder core and cylinder body.
Drilling protection (AB = 3): high safety requirements
For high safety requirements, the drilling protection in the cylinder core and cylinder body consists of a combination of several special carbide elements.
Drilling protection (AB = KS3):
To protect the core or locking cylinder against pulling, profile cylinders can be supplied with core pulling lock with pulling protection of locking cylinder and integrated drilling protection
The core with core pulling lock is supplied in nickel silver without surface treatment.