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umenzi wamasuntswana e-Tricone IADC127 4 9/16 intshi (115.9mm)
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Umzi-mveliso we-Tricone bits IADC127 5 7/8 intshi (149mm) yokomba oqinileyo
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Umzi-mveliso we-drill drill yonke i-IADC127 6 1/4 intshi (158.8mm)
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Umboneleli weebits zeTricone IADC127 7.5 intshi (190mm)
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Amasuntswana okomba kwisitokhwe IADC127 7 7/8 intshi (200mm)
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API rig yokomba amasuntswana IADC127 8 1/2 intshi (215mm) for rock nzima
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Tricone bits kwisitokhwe IADC127 8 3/4 intshi (222mm)
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I-API yokusila amasuntswana amazinyo kwisitokhwe IADC127 9.5 intshi (241mm)
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Isaphulelo samasuntswana e-tricone IADC127 9 5/8 ” (244.5mm)
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Intloko ejikelezayo yerig IADC127 9 7/8 ” (250.8mm)
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Iicones ezi-3 ze-roller bits IADC127 11 5/8 ” (295mm)
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Amasuntswana okomba anzulu IADC127 13 5/8 ” (346mm) kwisitokhwe