pdc hole opener drill bit

Contact NowZuanLong PDC Diamond Bits Drag Bit PDC Drill Bit For Borehole DrillingZuanlong supplies a variety of drag bits for many types of projects drilling needs, including 3 wings type bits for soft and medium formations, 4 wings, especially 4 wings chevron type for harder formations. Each of our bits is machined from a forging to exacting standards and then tipped with tungsten carbide. Mining grade tungsten carbide tips are brazed to the bits wing face for heavy duty bits. Then pin threads are CNC manufactured and wings surfaced hardening subsequently.Read More
Contact Now1 Inch Dust Hog Drill Bit for roof supporting,Dust Hog Drill Bit manufacturerZuanlong Bits are new and revolutionary for improving the efficiency and mining costs associated with drilling. 1. Drills 50 - 200 times longer 2. Increase tonnage and production 3. Penetrate hard rock faster 4. Reduce thrust requirements by 50%, increasing drill steel life and eliminating...Read More
Contact NowCoal Mining Diamond PDC Roof Bolt Drill Bit Mainly Used In The Industries ,Water ConservancyOur pdc roof bolt coal mine drill bit, which divided into 2 kinds----double wing and triple wing. All suitable for drilling the anchor-network support holes in the coal mine. We could supply the size from Φ25 to Φ42mm. And we also could provide the different strength roof bolting bits, like ordinary type, strengthened type, and super strengthened type.Read More
Contact NowPDC Non Coring Drill Bit For Geological Exploration / Coal Mining / Water ConservancyThe four wings normal type concave drill bits suits for f<=10, the reinforced type suites for f<=15Read More
Contact Now60mm,75mm,94mm,113mm,133mm Pillar Drill Bit Factory DirectZuanlong 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
Contact NowCheap Used Best Selling The Factrory Direct Supply,PDC Anchor Shank Drill Bits/Mining PDC Core Drill 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