How do I get into my Sentry Safe?

If you are not going to reuse the safe and are planning to get rid of it then I would suggest you call the locksmith back and ask what he would charge if you bring the safe to him to drill. I would imagine that the cost would be much less and perhaps he would give you a credit for the safe if he was interested. If not you probably want to take it to the dump anyway. It will knock out two jobs with one trip.