1,HGY-300 Drilling Machine 2,Full-hydraulic chuck or ball-type chuck 3,Widely used in exploration 4,Drilling rod diameter ... is widely used in the construction of the projects e.g. prospecting, railway, road, port, bridge, water conservancy and hydropower, ... wire rope diameter (mm)13Mode of chuckFull-hydraulic chuck or ball-type chuck Weight(power unit excepted)(Kg) 1200Overall dimensions(mm)2000*900 ...