The T8 series ensures resistance to different concerted attacks. It functions through the help of master keying. This feature provides each lock, with its own separate differ key. But at the same time, the master key is able to open all the locks inside the suite. Each set of the key device is integrated with a master key code, and an optional key registration. The device utilizes the Octagon mechanism, which includes its 10 pin version. The master key consist of 5 million key combinations. Also, it features a unique head profile, and a steel components. In addition, it is designed with a secured retention of the internal components, which guarantees resistance from any drive-through attacks. It is suitable for use against illegal activities such as picking, and unauthorized issue of keys.