Product Features: 1. Spindle type mechanical transmission, hydraulic feed. 2. Hydraulic retracting lets drill body away from the drilling hole. 3. Hydraulic chuck, hand-powered chuck and hand-powered cylinder chuck, they are exchangeable. 4. Friction hoist, percussion drilling, easy to pull and push casing if equipped with vibrator. 5. Advanced design, reasonable arrangement, compact structure, beautiful looking. 6. Light weight, good detachability, easy to operate. 7. Equipped with special 6mA type derrick for user ordering.
