... 537,617 4.oil,water well Mill tooth Tricone ROCK Bit -TCI Tricone Bit Specifications: Bit typeIADC CodeApplicable ... .50~1.20200~401.Type:TCI -tungsten carbide insert and Milled tooth2.Available size: 85.5MM,88. ... .we can make the diamater size of the rock bits as cutomers request.the diamater size show in ... code of rock bits Milled tooth:116,117,126,127,136,137,216,217.TCI-tungsten carbide insert:417,437 ...