Discussing how to get into a money box in an open forum is a no-no. Too many of those with low moral standards already know how. There is no reason to give them more information. Call us to discuss your problem. Some boxes you will attack one way, some another. As to keying boxes all alike, we can help with that, but only if they are locks from Monarch. We cannot match ESD or Greenwald keys nor can they do ours.
See the entries in "Martin's Muddled Mental Meanderings" for more info on keys.