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API vili vili vili IADC517 4.5 inisi (114mm) i totonu o oloa
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Fa'amau fa'amau IADC517 118mm mo su'ega ma'a vaieli.
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API falegaosimea o ta'avale vili vili IADC517 4 3/4″ (120mm)
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API fa'amau fa'amau fa'amau IADC517 5 1/4″ (133mm) i totonu
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Tungsten Carbide Fa'aofi vili ma'a IADC517 5 7/8″(149mm)
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API Vaieli vili tricon bit IADC517 6″(152.4mm) mo le fa'atau
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Tricone roller bits IADC517 6 1/4″ (159mm)
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TCI fa'amaufa'ailoga papa fa'amau fa'amau IADC517 6 1/2″ (165mm) mo le vili lelei
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TCI tricone bit IADC517 7 1/2″ (190mm)
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Vailalo Tricone Bit IADC517 7 7/8 inisi (200mm)
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API Tricone Bit IADC517 8.5 inisi (215.90mm)
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API Tricone vili vili IADC517 8 3/4 inisi (222mm) i totonu