... & TCI bit),Tri-cone Bit,Three cone bit,Tricone Drill bit,tungsten cabide inserted bits,Tricone rock bit,Milled tooth bit,Roller Cone ... Types: steel tooth tricone bit (mill tooth tricone bit) and tricone bit(tungsten carbide inserted tricone bit),both of which are ... ,very hard formation .We have different and suitable types12,Button bit: small tooth, big tooth,conical inserts,chisel inserts13,Packing ...