The J252-AD is a dual boom drill jumbo designed for efficient drilling in headings as large as 28 ft. wide and 16 ft. high in one set up. Capable of carrying all fuel and pelletizing water necessary to operate a full 10 hour shift without service. Four ram type stabilizers lift the complete machine 1 ft. off the ground for improved stability. All controls are conveniently located for comfortable operation from the standard “captains” style seat.