The Superior Untouchable gun safes are hand-built one at a time by our best craftsmen using only the finest American-made materials. It is our strongest, most secure safe. Not only has it earned the UL Residential Security Container (RSC) certification, it also exceeds the safe industries more substantial B requirements. The Class B safe is a major upgrade in protection offered by a RSC safe. A Class B high security safe must have a 1/2″ thick solid steel door and 1/4″ thick solid steel walls on all five sides.At the Superior Untouchable gun safes core is a heavy steel foundation that can resist hours of forcible attack by skilled criminals. The body is formed from 1/4″ carbon steel plate with double MIG welded top and bottom caps. The massive Triple-Step™ door contains 5/8″ of steel, 1/2″ solid outer steel and 10-gauge full inner steel. The Superior Untouchable gun safes fortified four-way system consists of: pinion-driven radial gear, massive bolt carriages and equalizers with substantial linkage. We call this system the Hell-Bender™–and for good reason. Even the best locksmiths have a “hell of a time” getting into it.