Used for general investigation, geophysical exploration, high-way and building construction, and blast-hole drilling etc.With hydro-automatic feeding device, and high drilling efficiency.Designed with hydro-chucking unit instead of slips to ensure drilling from stop when changing pipes.Close levers, convenient to operate, safe and reliable operations.Compact in structure. All the drill, water pump and diesel engine installed on one base frame result in space-saving.Light in weight, easy disassembling for transportation and applicable to working conditions in plain and mountain areas.