price for large drill bit

Dth hollow drill rod top hammer drilling tools for geothermal exploration hole contact now 76mm api2 3/8'' reg dth drill rods for mine mining / well bore , high accuracy

Dth hammers and bits ams stocks a wide range of down the hole (dth) hammers ranging from 4 to 8 inch in diameter. we also carry a wide variety of dth bits in numerous shank sizes and can custom make any type of bit to suit all drilling requirements.

28 rows · dth drill rods (also called as drill tubes or drill pipes) are the mechanism to transmit impact force and rotation torque to dth hammer and dth bit, as well as offer pass for the air flow. guizhou vilong supplies a full size of friction welded dth drill rods from 76mm to 140mm with different wall thickness.

As a rule of thumb, the smallest hole diameter a dth hammer can drill is its nominal size. i.e. standard 102 mm (4”) hammer will drill a hole down to a minimum diameter of 102 mm (4”). the limiting factor is the outside diameter of the hammer, because as the hole diameter reduces due to diameter wear of the bit, airflow is restricted.

We are an enterprise that export price for large drill bit to China, we're approved by the relevant state registratio. Main price for large drill bit and sell to several regions in China, solution available upon request. We've the spirit of "customer initially, honesty first" principle, having a number of enterprises established long-term cooperative partnership.


price for large drill bit exporter from China, we are one of the most skilled supplier from USA with ISO9001 Certification. Also the items have been certified by mutiple security certification.We are going to offer you our price for large drill bit priducts in top-quality and most favourable price.

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