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Zvidimbu zvematombo zveTCI tricone IADC537 6 3/4″ (171mm)
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Bhatani reAPI IADC537 6.5 inches (165mm) nemutengo wakaderedzwa
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TCI rock bit IADC537 7 1/2” (190 mm)
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API factory tricone bit IADC537 7 5/8 ” (193.7 mm)
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TCI tricone bit IADC537 7 7/8 inches (200 mm)
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Tungsten Carbide Insert Bit IADC537 8 1/2″(215.9mm)
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API button rock drill bit IADC537 8 3/4″(222.2mm) nemutengo wakaderedzwa
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TCI drill bit IADC537 9 1/2″(241mm) yetsime remafuta redombo rakaoma
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Zvidimbu zvekuboorera matombo zveAPI IADC537 10 5/8 inches (269mm)
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API makoni matatu bit IADC537 11 5/8″(295mm) yetsime rakaoma
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Chidimbu che tri-cone chinotenderera IADC537 12 1/4″(311mm)
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Chidimbu chekuboorera matombo cheFar Eastern chakavharwa nesimbi IADC537 13 5/8″(346mm)