High Air Pressure DTH Bits(6-8 Inch)


Processing Type:Forging

Face design:Flat;Convex;Concave

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Introduction of DTH Drill Bits:

DTH (Down to Hole) drill bit, also called spline connected drill bit, is mainly used in large scale mine (open and underground), open quarry and construction. The hammer is situated down the hole in direct connected with the drill bit with splines in the bit. The hammer piston strikes the drill bit resulting in an efficient transmission of the impact energy and insignificant power losses with the hole depth.

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DTH Drill Bits Future:

1.Button bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength).Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture.

2.Recommended for eliminating hole deviation

3.Widely used drifting and tunneling 

4.Bit face design is ideal for medium-hard to hard abrasive rock


DTH drill bits are widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering. it has the advantage of high flatness, smooth hole wall, high rigid of drill rod and hammer, independent of high axial thrust, no limit of drilling depth, low cost of devices and easiness to maintain.


Our company is the professional DTH drill bits supplier! After many years experience we provide the worldwide customers ideal DTH drill bits. Optimized designs improve the drilling efficiency. And automatic production line ensure the quality stability of product. Strict requirements of heat-treatment guarantee durability of the bits.


 6 Inch High Air Pressure DTH Bits


8 Inch High Air Pressure DTH Bits


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