The G1000’s locking system is equipped with a unique three-dimensional key mechanism utilizing sixteen pins placed on four different levels of the cylinder, resulting in over four billion key combinations and making every lock distinctive. The G1000 locking system also offers extensive master-keying possibilities due to the availability of 4,294,967,296 different key combinations. The G1000 is certified European Grade-7, the highest grade of security against force attacks in accordance with standard EN 12209 and is secured with anti-drilling hardened steel pins, ball bearings and a hardened core. In addition, parts of the cylinder mechanism are made of materials of varying hardness (steel and brass), which makes it even more difficult to drill through. It is also resistant to picking, electro-picking and bumping.