1. Weight of the main machine: 27kg

2. Overall dimension: 746×315× 229mm

3. Type of engine: single cylinder, air cooled two strokes

4. Cylinder Diameter×Stroke of piston: 5 8 × 70mm

5. Rotating speed of engine: ≥2450r/min

6. Displacement of englne plston: 185 cm³

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) ≥ 250mm /min

10. Max. Drilling depth: ≥ 6m

11. Fuel consumption: ≤0. 12L /M

12. Tank capacity: ≥ 1. 14L

13. Mixing ratio of gasoline and lubrication oil (in volumes): 9: 1

14. End of drill rod dimensions: hexagonal2 2 × 108mm

15. Rotating speed of drill rod: ≥200r/min

16. Clearance of Spark plug : 0. 5 -0. 7mm