The Yale AS Series Euro Profile cylinder has been developed and tested to British Standard BS EN1303:2005 to provide resistance against known cylinder attack methods. Additional protective features include, a strengthening bar which provides additional strength against physical attacks, as well as grip deflectors, which make it difficult to grip the cylinder protecting it against physical attack with tools. Suitable as a replacement product on PVCu, wood and composite doors, this cylinder is recommended for use on doors that require a maximum level of security against physical and manipulation attacks.