1. The drilling rigs are of modular design, with a rotary-percussive drifter and a rotary drifter optional and interchangeable for different drilling operations. Besides a standard feed mast with a length of 4100 mm, a shorter feed mast is optional to satisfy narrow, low hole-drilling sites.
2.  The drill rod gripper assembly provides a flexible configuration to meet the requirements of different drifters for the gripper and achieve highest efficiency.
3.  The lifting winch can realize luffing (that is, the lifting positions are adjustable back and forth) for easy lifting operations.
4. The drifter-trolley is configured with a sideway mechanism for easy lifting of the drilling equipment (i.e. rods, bits and so on).
5. The feed mechanism is of stepless speeds.
6. The rotary-percussive drifter is provided with a back-hammering unit which is protected by an operating control.
7. The engine features an accelerator executor for the operator to regulate the throttle at the console.
8. The console is equipped with an elevator mechanism for easy control of the drilling operations.
9. The complete drilling rig can perform a 360° slewing, and rise and fall.
10. All the safety devices are up to the requirements for use in Hong Kong, Macao, Singapore and so on.