Our drill rig is a Separated and integrated crawler type down-the-hole drill rig with a hydraulic rotary head and is widely used in the quarry, surface mining and construction. It is equipped with a standard 3”/4” DTH hammer and diameter of 60/68/76 mm drill pipes. The designed hole diameter is depend on customers’ requirements, and the designed hole depth is different. When the hole diameter is increased as per special requirements, the corresponding hole depth shall be decreased.