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8" DTH Hammer Mining DTH Bit , Alloy Steel High Strength Rock Drill Tools

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8" DTH Hammer Mining DTH Bit , Alloy Steel High Strength Rock Drill Tools

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8" DTH Hammer Mining DTH Bit , Alloy Steel High Strength Rock Drill Tools

MISSION80-254mm rock drill bits widely used in blasting hole and water well drilling. Matched hammer Dia. Bit diameter No.× Button Dia.(mm) Air holes Weight (kg) Shank mm inch Gauge Front 8” 203 8 9...

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button drill bit

      

dth installation tools

      
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