... projects e.g. prospecting, railway, road, port, bridge, water conservancy and hydropower, tunnel, well, industrial and civil construction, ... structure. Technological Data of Drilling Rigs: ModelHGY-300 Water Well Drilling MachineDrilling depth( m)300Drilling rod diameter.(mm ... mm)13Mode of chuckFull-hydraulic chuck or ball-type chuck Weight(power unit excepted)(Kg) 1200Overall dimensions(mm)2000*900* ...