Foundation Drilling C31 Cutter Picks C31HD Carbide Cutting Teeth Drill Auger Bit Trencher Teeth Foundation Rock Drill ToothPopular
A good quality tungsten bit are made from high quality tungsten and good bearing system. Baorui roller bits are manufactured by the high quality 100% new hard carbide, the C31 HD drill bits could be installed on the core barrel to drill the chain and wheel trencher.