We open, repair, service, change combinations on all vaults.    OPEN VAULTS: A HHM vault lock.   Open  and service a vault.   SERVICE VAULTS:  Clean,service bolt works and time locks.    COMBINATION CHANGES:       CANNON SAFE:      This National Security Safe, is built heavy duty, with several drill resistant features including ball bearings. This is not a gun safe, this is a very, very expensive safe used as a mini vault. The customer was very concerned about opening it properly. David opened this using Micro Drilling 0.125" and scoping it open. The repair was hardly noticeable on the inside of the safe. First photograph is the outside of the safe, the drill hole cannot be located. David used the original dial that was still in new like condition with no signs of damage.  The second photograph is the inside plate where the S&G 6730 lock is mounted on.