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Kaiwhakarato API o ngā mata keri poka hohonu IADC537 9 5/8″(244.5mm)
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Pātene API TCI IADC537 9 7/8″(250mm) mō te keri poka toka mārō
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Pātene Hurihuri IADC537 3 7/8″ (98mm)
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Ngā mata wiri Tricone IADC537 4 3/4″ (120.6mm)
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Mata keri API tricone IADC537 14 3/4″ (374mm) mō te toka mārō
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Ngā Momo Tricone IADC537 4 5/8″ (118mm)
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Matau toka tricone API IADC537 5 1/4″ (133mm)
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Mata keri toka API IADC537 5 1/2” (139.7 mm) mō te poka mārō
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Ngā mata keri API IADC537 5 5/8″ (142.9mm)
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Ngā mata keri tungsten carbide tere teitei IADC537 5 7/8″ (149mm)
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Ngā mata kōhatu Tricone IADC537 6 inihi (152.4 mm)
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Mata tricone hurihuri IADC537 6 1/4 inihi (159 mm)