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Bits Dth Hammer Bit Dth Drill Bit SPM360 6' DHD360- 165mm High Pressure Tungsten Carbide Button Drill Bits DTH Hammer Drill Bit ... . 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 Type Dia. ... Foundation Drilling Bit DTH Down The Hole ...
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