Factory for Down the hole bit

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.

We offer a complete range of dth drilling tools including hammers, bits, pipes, adapters, reverse circulation products, breakout benches and grinding machines with consumables. innovation and commitment over the decades the history of the down-the-hole hammer manufacturing goes back more than four decades.

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.

Dth drill bits are the most used drill tools no matter for construction or mining industry, especially for the mining industry, we can say the dth drill bit is the foundation for the mining drilling working.

Factory for Down the hole bit could be the item that we've continued to emerge inside the China market and achieved good reputation. Our merchandise promoting network at all over the China regions. More than 10 years, we have created into a high-volume, multi-function of your characteristics, it could completely meet the wants on the Factory for Down the hole bit sector.


Factory for Down the hole bit items supplier in China,we support our buyers with ideal high quality products and high level service.Becoming the specialist manufacturer in this sector,we have gained rich practical experience in producing and managing.Our Factory for Down the hole bit items won certifications with the regional and international primary authorities .For far more detailed information,please contact us!

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