I may be wrong, but I believe that a fridge door and a freezer lid are more alike than a fridge door and the front body of a freezer. Refrigerant lines are an unknown around the body of a chest freezer, but in the lid they are absent....same with a fridge door, it is basically a wall of insulation that opens and closes. No lines to be wary of. I'm really just thinking of it in a common sense way, not that I've actually drilled either. Maybe someone in the HVAC type field can chime in definitively.