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Itywina i-bts ye-drill ye-bts IADC126 9 7/8 intshi (250mm)
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I-Tricone drill bits umboneleli we-IADC126 12 1/4 intshi (311mm) yokomba umthombo
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Isuntswana lokugrumba i-IADC127 3 7/8″ intshi (98.4mm)
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I-API trione yokomba i-IADC127 4 5/8 intshi (118mm) iyathengiswa
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Umzi mveliso wamasuntswana atywiniweyo IADC127 6 intshi (152mm)
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Amasuntswana okomba anzulu IADC127 12 1/4 ” (311mm)
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Isuntswana ledayimani yetricone IADC216 7.5 intshi (190mm)
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Umzi-mveliso we-Tricone bits IADC216 9 7/8intshi (250.8mm)