If you are looking for China anchor drill bit with patented technologies and high quality anchor drill bit for sale in China from professional anchor drill bit supplier and factory,Website:http://www.rejeedrilling.com, please feel free to contact Rejee Industry.Application scopeAnchor bits are mainly used to drill bolting support boreholes in coal mines, ensuring fast and highly efficient roadway excavations. FeaturesAnchor bits,featuring high quality PDC as cutter, have high wear and impact resistance. The simultaneous erosion of the matrix and the PDC piece makes the bit self sharpening, improving the drilling efficiency. The advanced welding technology guarantees the high strength and long service life. The bits can be used in most formations, suitable for air drilling and water drilling operations, providing a high ratio of successful holes with correct and stable hole diameters, greatly reducing the waste of bolts. Selectionɸ25,ɸ27,ɸ28,ɸ30,ɸ32,ɸ36,ɸ42Bits also can be customized to customers’ specifications and needs.