The diameter of the tricone bit is also good in terms of diameter protection: in good very good chip in the product outside the advantages of diamond embedding diameter, also wear resistant, the advantages of diameter protection of its Fu, but also for the advantages of cutting teeth generally have a pleasant application; 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 diameter will not be the same in drilling efficiency is also easy to master or baby life is better, on the drilling opportunity is less, in drilling funds dry to avoid liquid reduction also, generally have a very good superb technology. Tricone bit diameter