RTD55 by Reichdrill LLC is the perfect rotary drill rig for production in hard rock mines in large quarries and open pit mines. These made in USA drill rigs are suitable for DTH and rotary drilling applications (up to 6¾ inches). The RTD55 is designed for mining, and all the key components (structure, mast, cab) are made in the factory in Pennsylvania, which guarantees efficiency, risk avoidance, service and repair ability. www.rtdrill.com