... FEATURES:Use hydraulic transmission, the body is separated from power pack, operation desk separately mounted, to lighten the drill ... to untighen the drill rod easily. Good detachability, easy moving, special for high place work; simple design, compact arrangement, ... 110mm,depth 100mHole dia Φ200mm,depth 80mType of hydraulic power packElectric motor,varibale oil pumpHydraulic system rated pressure(Mpa) ...