Profile: Deep Rock Mfg. is a manufacturer of portable water drills. With our Hydra-Drill, there's an economical way to drill a home water well without the expense of a commercial driller. A person using the Hydra-Drill can drill through almost anything a crew operated, truck mounted rig can drill. makes a range of drills from small, two-wheel trailer-mounted, to large truck-mounted rigs. The drill pipe ranges from five- to twenty-foot lengths (1.5-6 m). The engines range from 12 to over 300 hp (9-225+ kW), gasoline and diesel. Rigs are available for mud rotary, air rotary, mud/air rotary and auger drilling. The DR 30A is and auger-only drill that is available with gas or diesel engines. It uses both solid or 2-1/4" ID hollow stem augers. The DR30A is ideal for small diameter, shallow monitoring wells or soil sampling. It uses the same frame as the DR 20.