Other Mining MachineryChina 6inch Down The Hole Hammer with DTH Bit Ql60 / M60 / SD6 / DHD360 / Cop64 / CD65 (3, 4, 5, 6, 8, 10, 12inch / QL, Mission, SD, DHD, COP, NUMA available), Find details about China DTH Hammer, DTH Bit from 6inch Down The Hole Hammer with DTH Bit Ql60 / M60 / SD6 / DHD360 / Cop64 / CD65 (3, 4, 5, 6, 8, 10, 12inch / QL, Mission, SD, DHD, COP, NUMA available)