China Power Equipments Petrol Gasoline Rock Drill Machine Specifications 1. Very efficient. 2. Less of the -easy-to -damage-part. 3. Very easy to control. 4. CE approved. 5. Only 27 kg The Internal Combustion Rock Drill Type YN27C is a very efficient machine with the haracters that the structure is very compact, Less of the-easy-to-damage-parts, and very easy to control. It can adapt to these outside situations there is no water and no electronic power. It is a Kind hand held drill built up with gasoline engine, Air pump, rock drill and the rotation plumbum equipment for running or stop. It can be used as a tool for breaking, percussive drilling, tamping besides rock Drilling. Technical specifications Weight of main machine 27kg Overall dimensions(L*W*H) 746*315*229mm Type of engine Single cylinder, air cooled two strokes Cylinder diameter*stroke of piston 鈹?8*70mm Rotation speed of engine 鈼?450rpm Displacement of engine piston 185cm3 Type of carburetor hand needle valve, floatless type Ignition system controllable silicon, contactless system Drilling speed (mean value of five holes) 鈼?50mm/min Drilling hole diameter 鈹?8-42mm Max drilling depth 6m Fuel consumption 鈼?.12L/m Tank capacity 鈼?.5liter Mixture ratio of gasoline and lubrication oil (in volumes) 12:01 Drill rod and breaker shank Hex22*108mm Rotating speed of drill rod 鈼?00rounds/min Clearance of spark plug 0.5-0.7mmChina Power Equipments website:http://www.nanjingvolley.com/power-equipments/