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Dth drilling a down-the-hole drill, usually called dth is mainly a pneumatic powered rock or ground drill, in which the percussive hammer is located directly behind the drill bit, so the percussion mechanism follows the bit down into the drill hole. the drill pipes transmit the necessary feed force and rotation to the dth hammer […]

We custom make dth bits that are suited to drilling for oil & gas, geo-thermal & waterwell, construction, horizontal directional drilling as well as mining. bit diameters range from 2” to 32”, in four different face shapes with an excellent selection of industry shanks.

Bitroc offers a comprehensive range of quality dth and rc drilling bits for use in the mining, construction, and exploration industries in all kind of rock types and drilling conditions. dth bits are available in sizes from 3" to 18", with all type of shanks (including atlas copco, sandvik, ingersoll rand shanks etc.).

Dth bit-changsha tianhe drilling tools and machinery co.

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