[InfernoST]

Whatever, I was in the hospital for 2 days because the drill was grounded and it was 277 vac not 120, I'm just trying to share my experience and help to prevent anyone else from getting hurt, even though it will be highly unlikely when drilling a tank. I've done the same thing about 15 times after the accident with an ungrounded drill and have not had a problem(same drill). The GFCI thing is great but they trip way to easy under certain circumstances. In any case you win.