Professional supplier of roller cone bits, tricone bit, dual-cone bit, single cone drill bits and other specifications. 1, high wear resistance alloy hardening dorsal and sand the entire surface of the tooth, thus greatly improving the life of the drill. 2, the optimal design of several rows of teeth, teeth, toothy height and unique tooth shape, give full play to the drill cutting capacity and cutting speed; 3, the main diameter: 4 5/8 ", 6", 7 ", 71 / 2 ", 8 1/2", 9 1/2 ", 9 5/8", 9 7/8 ", 12 1/4", 12 1/2 ", 14 3/4", 15 ", 15 1/2 ", 16", 17 1/2 ", 22", 26 "and so on. 4, steel tooth roller cone drill bit suitable for soft formation, soft to medium-hard bottom, widely used in oil, mining, geological survey, hydrology detection, piling, geothermal development, wells and other drilling fields.