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Dth drill bit manufacturers, factory, suppliers from china, we can give you the most competitive prices and high quality, because we are much more professional! so please do not hesitate to contact us. 86 0635 8585985 . [email protected] . …

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.

Yg down the hole drilling is widely used in metallurgy, mining, railway, hydropower construction, and underwater drilling and blasting projects.

The optimum range of hole size for dth drilling is 90 mm (3.5”) to 254 mm (10”). smaller holes are generally drilled using tophammer drill rigs, and larger holes generally use rotary drill rigs. 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”).

We are an enterprise that export service for 165mm bit to China, we're approved by the relevant state registratio. Main service for 165mm 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.


service for 165mm bit manufacturer with years's encounter, from China.We mainly provide service for 165mm bit with premium quality and competitive cost.we've got an expert service for 165mm bit solution designers.Our item is via the national qualified certification.

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