Most companies claim their safes can withstand this but at the end of the day, it's not real unless you have the rating to prove it. With a TL-15 rating, Hollon really outdid themselves on the PM series. Their team of experts punished these safes with sledgehammers, pickaxes, crowbars, pry bars, chisels, power saws, drills and rotating disc cutters. It not only survived the rigorous attacks, but far exceeded them earning it the prestigious TL-15 burglary rating. The PM-1014 offers the maximum protection against high-intensity fires. With a 2 hour factory tested rating, this safe maintained an internal temperature below 350° for 2 hours with an external temperature reaching up to 1750°! So I'm guessing you're wondering how they did it? Well with features like a special design burglary resistant handle, glass re-locker and a highly compressed proprietary concrete mixture, the PM-1014 is a TANK! Standard on the PM-1014 high security safe, comes the UL Listed S&G Spyproof Group II Mechanical Dial lock with the ability to upgrade to the S&G Spartan D-Drive Electronic Lock.