If you truly want to know this incase you loose the ket or what ever, then, from what i believe you can contact the company that produces the safe and they will have a unique template for your specific safe. This template is placed on the front of the safe and then you need to hammer something hard and sharp/pointy (the kind of thing you mark metal with for measurements but i forgot the name) and the safe should pop open.
By the way, iv never done this or seen it happen, i think i read it in FHM once... |