1.PDC coal mining tools 2.ore mining,many type 3.good ... , mining tools, DTH Drill tools. Construction tools and excavating coal pick cutter tools, we can also produce other products according to the ... R32, R38, T38, T45, T51)Shank adapters - carburized and manufactured with tight tolerances and controlled straightness.4. DTH hammers and DTH ... (Rod, Cross bits, button bits and X-type bits etc). PDC cutter