mining arc pillar bit

Contact NowSintered Pillar Drill Bit With Matrix Body ,Best Price PDC Matrix Body Bit For SaleZuanLong PDC Sintered concave drill bit is mainly used for drilling soft-medium formation, such as mud shone, limestone, shale, sandstone and granite etc, it has been wildly used to penetrate the degassing hole, drain hole and grouting hole of coal mine, water, road construction, bridge and building. And...Read More

Contact NowPDC 3 Wings Half Tips Bit, Buy Roof Support Bolting Drill BitPDC Roof Support Bolting Drill Bit are mainly used in cola mining roof supporting, gas drainage, water infusion, geological exploration hole and grouting hole drilling.Read More

Contact NowPDC Four Wings Drag Bit, Scarp Drill Bits SupplierDrag bits are the perfect solutions for soil, sand, sticky clay, and grouting drilling. And Customization are available.Read More