This hardened steel lock cylinder protector (HRC58) is designed for armored door locks, providing superior anti-drill and anti-pry protection. The concealed internal fixing design prevents external removal, significantly enhancing anti-tamper security.

Manufactured with advanced heat treatment, it offers excellent wear resistance and long-lasting durability. Suitable for security doors, entrance doors, and commercial applications. Various finishes are available with OEM & ODM customization.