diamond pdc roof bolt drill bit

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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 Roof Drill Bits/coal Bits/Mining Bits/dust Hog BitPDC anchor shank drill bits are mainly used to drill the roof and side supporting hole, the gas drainage, water infusion, geological exploration hole and grouting hole and so on for the coal mine seam, water conservancy and hydro-power, dam and roadway construction of bolt-mesh support.Read More
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Contact NowDiamond Core Drill Bits For Mining And Geological Exploration SupplierThe advantage of ZuanLong Diamond Core Bits 1. The matrix height is 12mm for K series and 16mm for Series 2. K2/S2, K4/S4, K6/S6 are main choice, K3/S3, K5/S5, K7/S7 can adjust hardness 3. K10,S10 choice is for special formationRead More
Contact NowNon-coring Gear Pillar PDC Drill Bit for Hard Rock,Pillar PDC Drill Bit SupplierZuanlong PDC Pillar Drill Bit has been wildly used to coring-drilling for geological exploratory of coal measure stratum. The normal type is suitable for the f<=10, the reinforced type is suitable for f<=16. Note: Customization are availableRead More
Contact NowNon Coring Pillar Head Bit Pillar Drill Bit For Hard RockZuanlong PDC Pillar Drill Bit has been wildly used to coring-drilling for geological exploratory of coal measure stratum. The normal type is suitable for the f<=10, the reinforced type is suitable for f<=16. Note: Customization are availableRead More
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