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They’re suitable to drill with casing tubes whose outer diameters are from 108mm to 323mm. With stable and reliable working performance and less vibration of drill rigs, they enable to bore holes in rock formations where contain some ovals, boulders and fractures. They are usually applied to anchoring project, road construction, pipe and cable laying, sampling, geothermal well, water well, piling and etc.

Design Objectives

1) Improve our products everlastingly, fulfilling to simplify the complicated problems during drilling.
2) Offer the fittest drilling tools according to the casing dimensions and requirements.
3 )Supply various casing drilling equipments with different types, structures, and working patterns.
4) Design DTH hammers skill fully for the customers' choices.
They are widely used in anchoring project, road construction, pipe and cable laying, sampling, geothermal well, water well, piling and etc.