Technical Specifications 1.Weight of the main machine: 27kg 2.Overall dimension: 746¡Á315¡Á 229mm 3.Type of engine:single cylinder,air cooled two strokes 4.Cylinder Diameter stroke of piston:5 8 ¡Á 70mm 5. Rotating speed of engine: ¡Ý2450r/min 6.Displacement of engine plston: 185cm3 7.Type of carburetor: hand needle valve,no floating type 8.Ignition system: Controllable silicon contactless system 9. Drilling speed:(mean value of five holes) ¡Ý 250mm /min 10. Max. drilling depth: ¡Ý 6m 11.Fuel consumption: 0.122 /m 12.Tank capacity:¡Ý 1.14L 13. Mixing ratio of gasoline and lubrication oil (in volumes):12:1 14. End of drill rod dimensions: hexagonal2 2 ¡Á 108mm 15. Rotating speed of drill rod:¡Ý200r/min 16. Clearance of Spark plug :0.5 -0.7mm.