PDC roof drill bit manufacturers

Contact NowHole Reamer Drill Bit PDC Reamers Bit 2017 Top Quality With Best PricePDC 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 limestones with occasional bands of harder rock such as ironstone.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 Now2017 Hot Sale PDC Reaming Tool Drill Bit/Hole Reaming Tool Bit From ZaunLong China1). 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 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
Contact NowPDC Coal Mine Roof Bolting Drill Bit/PDC Roof Anchor 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 NowNatural Diamond Skin Impregnated Core Bit, Buy HQ,PQ Diamond Coring Bit for GeologicalMatrix Hardness Comparation Between Zuanlong Manufacturer and Other Company 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