... TCI bit),Tri-cone Bit,Three cone bit,Tricone Drill bit,tungsten cabide inserted bits,Tricone rock bit,Milled tooth bit,Roller ... steel tooth tricone bit (mill tooth tricone bit) and tricone bit(tungsten carbide inserted tricone bit),both of which ... mm)to 26"(660 mm)6,Moq:1 piece7,Bit body Color: can be as you like ... within 7 work days4.TCI Tricone Bittricone bit Cutting structure: very long widely spaced , ...