SECURITY GRADE 6 . BODY Material: Case-hardened steel Finish: Chrome Shackle Material: Case-hardened boron steel .Diameter: 15mm, Horizontal Clearance: 30mm. Vertical Clearance: 25mm ABLOY PROTEC2 is the latest milestone in the development of the unique ABLOY rotating disc cylinder keying systems that offers several unsurpassed and superior security features and benefits. ABLOY PROTEC2 is a Keying System technology platform that can be used to create Masterkey Systems, Key Alike Systems or to Individually Key a range of cylinder variations to suit most locks available in the Australian market. Extensive master keying capabilities and unsurpassed features and benefits offered by the rotating disc mechanism ABLOYPROTEC2 employs makes it the right choice for building or infrastructure projects large or small.