The portable pipe machining and welding end prep tool includes a dual spring safety hanger for easily maneuvering and precisely aligning it into a large pipe I.D. Terminator Millhog is designed for large pipe from 8.625" I.D. to 36” O.D. and can bevel, face and bore simultaneously to produce end preps of any angle. It has a tracker to compensate for variations in wall thickness and a precision feed control to advance into the pipe.