TCI tricone bits IADC 537 sealed bearing size from 3" 7/8 to 26" coverd all of IADC No. 1.Sizes from 3 7/8" to 26" 2.Cover almost all IADC code 3.Reliable bearing system 4.Strong cutting structure durabilitydrilling bits water well drill ProductSizeIADC CODE TCI Tricone Bit3 7/8 ,5 1/2, 6 1/27 7/8,8 1/2,8 3/410 5/8,12 1/413 3/4, 17 1/2,22, 24,26417 427 437517 527 537617 637 737Steel Tooth Tricone ...
China
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