Tricone bit production process in the diameter of a lot of consistent: in the consistent and good chip type and in the structure of the remember to insert diamond diameter, a lot of wear-resistant, diameter of the special is very consistent, should make the cutter remember to hold happy operation; It has been proved that it can be applied to the progress of soft and medium hard strata such as carbonate rock, limestone, chalk, claystone, siltstone, sandstone, etc. Compared with ordinary drill bit, especially in the 6-8 strata, the effect is obvious. Tricone bit production process are not the same in the drilling of a lot of good and good life, this drill top probability of a lot of young, in the cost of drilling fell off for, holding good excellent characteristics.