rock drill tools 6 inch DHD350 COP44 high air pressure dth hammer bit

rock drill tools 6 inch DHD350 COP44 high air pressure dth hammer bit

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1.The high and medium air pressure DTH hammer bits with head diameter ranges from 76mm to 250mm are widely used in mining, stone excavation, rock anchored, slope treatment and water reef blasting, and 229mm and upwords are mainly used in water well drilling. Geotools DTH hammer bits perform well in driving speed, anti-oxidation corrosion resistance, powder exhausting, wear resistance, impact resistance and service life.2.The low air pressure DTH hammer bits with head diameter ranges from 76mm to 250mm are widely used in mining, stone excavation, rock anchored, slope treatment and water reef blasting, and 229mm and upwords are mainly used in water well drilling. Geotools DTH hammer bits perform well in driving speed, anti-oxidation corrosion resistance, powder exhausting, wear resistance, impact resistance and service life.