2 3/8" API DTH Drill Pipe For Water Drilling Stone Quarrying Drill pipes that are used in applications such as DTH/ DTHR/ DR basically comprise of a steel tube with a pin at one end and a box on the other. The job of the drill pipe is to transmit rotational torque and thrust from the drill rig rotary head to down h
2017-07-16
Tapered Tungsten Carbide Cross Rock Drill Bits For Drilling Diameter of bits from 30mm to 50mm with 4 ,6,7,11,12 degree, premium alloy tapered drill steel with Hexagonal.22mm and Hexagonal.25mm,The deliver capacity are very strong and can completely meet customer's requirements on delivery design.
2017-07-11
CIR170 Down The Hole DTH Drill Hammer For Mining Drilling Rocks When percussion or hammer drilling, the percussion mechanism is called a DTH or down the hole hammer. This drilling tool is located directly above the hammer bit. The driller transfers weight to the bit through the drill pipe as well as provides some rot
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