Hardrock DTH drilling tools are manufactured with high quality and high efficiency. DOWN THE HOLE drilling is a kind of big diameter borehole drilling by extending the impacting power to the bottom of the hole. With high strengthens, clean hole wall, good rigidity of drill pipe and hammer, without high axial thrust, no restriction of drilling depth and low cost, DTH drilling tools are widely used in open-pit mining.
It seems we can’t find what you’re looking for. Perhaps searching can help.