The internal combustion rock drill is a combination of small gasoline engine, compressor, rock drill from the jackhammer tool.It is suitable for mountains, no power, no wind pressure equipment areas and greater mobility of temporary works. During operation, compressed air from the purge itself of the eyes of rock powder guns. Main applications Turning the swing arm to running-or-stop rotation, the machine can be converted into a breaker or a hammer, for breaking, digging, splitting or ramming. The machine is suited to build of bridge, road, power station, geological exploration etc. Features of rock drill 1.Easy to operate , just turn the handle to make it work. 2. Time and labor saving, Drilling fast and high efficiency. 3.Light Drilling Tools, only 27kgs, easy to carry. 4.Used to drill vertical downward hole(max depth 6m) and and