Matrix Body PDC Coring Bit Beijing Superior Drilling Equipment Co., Ltd. Base Info Model NO.:Matrix body PDC coring bitMaterial:DiamondUsage:Coring BitTrademark:FEILONGTransport Package:Metal BoxSpecification:165mmOrigin:ChinaHS Code:82071910 Description Pre:Best Selling Rock Reamer with Roller Cones Next:12-1/4 Inches Insert Drill Bit with High Quality and Good Price