The unique, patented construction of the Abloy Protec rotating disc cylinder makes it virtually pickproof. Keys and discs use a new principle where cuts are made on two different radii. In addition, the return bars block the discs at 90° if the key and cylinder combinations are not identical. The Abloy Protec cylinder not only meets but exceeds international standards for high security including UL 437 and EN 1303. 1.97 billion different key combinations per keyway make it possible to create extensive master-key systems that fulfill your precise specifications. As a standard BOA offers the Abloy Protec Keyway Abloy Exec, Protec2, and Sentry Keyways call for availability.