The CMI Blister Class B SCEC Safe, specifically the CMI Class B Key Custody Safe (Model GKC1), is a precision-engineered security container designed to meet the rigorous demands of Australian Government Departments and agencies. Endorsed by the Security Construction and Equipment Committee (SCEC) at a Class B security level, this safe provides robust protection for highly sensitive keys, ensuring positive protection against both covert and forcible entry.
Constructed from 5mm (or 6mm) fully welded steel, its compact yet formidable body is designed for exceptional strength. The door, featuring a 12mm overall thickness, is meticulously recessed with minimal clearance (e.g., 2mm) to deter crowbar attacks, and is secured by concealed hinges that prevent hinge removal. A critical security enhancement is the 10mm manganese anti-drill plate that actively protects the lock mechanism from drilling attacks.

