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Surface mining

Bench drilling Is used with hydraulic drill rig for small and medium diameter drilling holes on hard rocks. It has advantages of high penetration rate, less fuel consumption, safety and environmental protection
Down hole drilling Is used for big and medium diameter drilling holes on hard rocks. It has advantages of high penetration rate, good hole forming quality, safety and environmental protection.
Roller bits are adaptable to hole drilling with advantages of big diameter and deep hole depth. They are usually used for blasting in large-scale open pit mines and drilling blasting holes.
Reverse circulation drilling tools is an exploration drilling method, which is faster method and lower cost vs. core drilling. It can get higher sample quality in low grade ores and is rapidly used for In-pit grade control.
Drill pipes  deliver rotation torque and pressure to the drill bit. They are used with a variety of drilling tools in open pit mines.  
Adaptor is used for connection of different sizes of thread and connection of male thread and female thread. They are used with a variety of drilling tools in open pit mines.