My coworker actually did the drilling of the hole, then he told me to open it by looking thru the hole.
It's simple when you know where the drop point is and I didn't even use a standard safe technician's scope. We used a welch allyn medical scope.
The safe was a Major TL30 High Security Safe which was drilled within 24 minutes.
I'm glad I have a coworker who doesn't mind sharing his secrets.
We are now practicing opening safes by viewing the change key hole.
I opened one today using this method for the first time in about an hour.