DRILLING AND MICRO DRILLING Micro drilling, is drilling with a 1/8" drill bit and it causes the least damage when opening the safe. The maximum size drill bit David uses, is a 1/4" drill bit, to drill open a safe. US Security AMSEC In the floor safe. Mosler MANUPLATION Some safe locks can be manipulated, manipulation is the best way to open a safe. Dutch Mill HHM lock   REPAIRS  Manufacturing parts, repairing bolt works and welding.
COMBINATION CHANGES Hand change and key change combination.

LOCK RETROFIT
 Old lock.

  New S&G 8550 lock.


A 40+ year old
S&G lock opened
by micro drilling.