... 3.High efficiency 4.Small weight and volume mini drill rig Technical Parameter Drilling depth60-80mDrilling ... 135 kg (total weight 350 kg); 2. Easy to operate, with or without experience can be used; ... more than 4,000 wells eyes, in addition to drill, but almost no repairation 4. Drill hard ... booster, reduce labor intensity; 6. Effective, plains to play more than 30 meters per hour, two members ...