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API telung kerucut bit IADC537 11 5/8″(295mm) kanggo sumur keras
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Bit tri-cone rotating IADC537 12 1/4″(311mm)
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Mata pengeboran batu Timur Jauh sing disegel logam IADC537 13 5/8″ (346mm)
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API tricone drill bit IADC537 14 3/4″ (374mm) kanggo hard rock
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Tricone roller bit drilling IADC537 15.5″(393.7mm) kanggo sumur jero
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Mata pengeboran TCI IADC537 16″(406.4mm)
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Tungsten Carbide Sisipan Trikon Bit IADC537 17.5" (444.5mm)
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API & ISO tricone roller bit IADC537 26″(660.4mm)