The default combination for a new safe is 50. If a locksmith has the proper change key available it is good practice to return the lock to 50 if a used safe changes hands. This way there is no risk of losing the combination and making the safe practically useless. It would then be up to the new owner to have it set with a 3 digit combination of their choice. So always try the single digit 50 first. Rotate a minimum of 4 times to the left, stop on 50, rotate right until it stops.
