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High quality exploration diamond core drilling bits bq nq hq pq nq3 hq3 pq3 from china, china's leading diamond core drilling bits product, with strict quality control diamond core drill bits for rock factories, producing high quality diamond core drill bits for rock products.

Welcome to friend drill,it is a famous privately operated enterprise specialized in researching and manufacturing rock drilling equipment and pneumatic tools. dth bit, dth hammer, dth hammer bit,drill dth bit

The down the hole drill rig consists of a drill rod, a dth button bits and an impactor. when drilling, use two drill rod extensions to drill. rotary air supply mechanism consists of a rotary motor, a rotary reducer, and an air supply gyrator. slewing reducer is a three-stage cylindrical gear enclosed heterosexual component.

4 3/4" digger dth hammer is used for 4 3/4" to 6" direct drilling and 6.5"7" over burden drilling. with the years of experience, we are providing 4 3/4" digger dth hammers to our esteemed clients. these hammers are used in bench drilling, underground production drilling, exploration and foundation drilling.

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