Steel Tooth Tricone Bits 1)certified by ISO9001&API 2))used for water well, oil field 3)multiple gauge protection steel tooth tricone bit,steel tooth bit Fast drilling speed. Long working life Quantity of reliable rock bit in stockSteel Tooth bits(Milled tooth bit),Tricone bit, rock bit,steel tooth tricone bit1.Sizes range from 3 7/8" to 26" , normal sizes consist of 5 7/8", 6", 6 1/2", 7 1/2", 8 ...
