rock drilling reamer bit

Contact NowPDC Roof Bolt Drill Bit Two Wings PDC Drill Bit Anchor 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
Contact NowDrilling Pdc Drag Bit/Step Drilling Bit From ZuanLongZuanlong 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 NowChina PDC Pillar Drill/Pillar Drill Bit SellerZuanlong 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 NowPDC Drag Bit For Coal Mining/Coal Mining Drilling Drag BitZuanlong 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 NowPDC Four Wings Concave Drill Bit, Non Coring Bit for Well DrillingThe four wings normal type concave drill bits suits for f<=10, the reinforced type suites for f<=15Read More
Contact NowBest PDC Hole Opener Drilling Bit With Extremely Fast Penetration Rates From ISO Manufacturer ZuanLong1). Our prodcut has been approved by ISO9001; 2). Our company has been awarded various certificates and honors by goverment, such as observe contact and keep promise enterprise, reliable quality enterprise, civilized unit, high and new tech enterprises, advanced qualtiy management enterprise,ect. ; 3). Specific researching and developing laboratory; 4). More than 15 years manufacturing experience;Read More
Contact NowUSA Best Selling Rock Drilling PDC Reamer Drill Bit/Expanding Hole OpenerZuanLong PDC hole opener was originally developed for coal mining and it has been proved to be exceptionally cost effective for geotechnical drilling. PDC core bits have extremely fast penetration rates and a very long working life. The cutters are extremely tough and can core formations such as hard...Read More
Contact NowDiamond Non Core Dril Bit Non Core Diamond Drill Bit For MiningThe four wings normal type concave drill bits suits for f<=10, the reinforced type suites for f<=15Read More
Contact NowCoal Mining Drill Tools/impregnated Non Coring Diamond Bit/Non Core PDC Drill Bits，coal Mining BitPDC Three Wings Concave Drill Bit are mainly used for penetrate the degassing hole, drain hole and grouting hole of coal mine.Read More