TDS has provide DTH Drilling tools for mining projects. DTH Hammer 3"/4"/5"/6"/8"/10"/12", High air pressure, low air pressure. DTH Button Bits DHD/QL/Mission/SD/NUMA/BR series. DTH Drill pipe 76mm/89mm/102mm/114mm/127mm/140mm. Features ---Long life span DTH Hammer ---Wear resistance drill bits ---High quality drill pipe ---Stability ---Accuracy