Cylinders CD series with the possibility of recoding and double-row profiled key. Approved on certification 3rd class. Two reference pins with groove for protection against opening picks. Two active number of pins complicate manipulation autopsy methods and increase privacy. Two protective hardened pins in the core and the pin in the end of the cylinder body to protect against drilling. Two reference pins are made of hardened steel, which prevents stretching and core is an additional protection against drilling. Theoretical secrecy: 17 915 904. Product line: Premier.