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Roller cone drill biit IADC637 4 5/8″ (118mm)
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Tricone roller bit IADC637 4 3/4 ″ (120mm) bakeng sa ho cheka lejoe le thata
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Ball tooth trione biit IADC637 5.5 ″ (140mm)
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API feme ea TCI tricone biit IADC637 6 “(152.4mm) setokong
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API TCI trione rock bit IADC637 6 3/4″ (171.4mm)
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API Tricone bit theko IADC637 8 1/2 ” (215.9mm)
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Konopo ea Rotary drill bit IADC617 12 1/4 inches (311mm)
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Moetsi oa likotoana tsa API trione drill IADC637 12 1/4 ” (311.1mm)
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Metal e tiisitsoeng ea drill bit IADC637 14 3/4 ” (374.6mm) bakeng sa seliba se tebileng
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Likhoune tse tharo tse nyane IADC637 17 1/2 ” (444.5mm)
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Tricone bits supplier IADC637 6.5 inches (165mm) bakeng sa hard rock
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Rotary roller bits IADC637 9 7/8 ” (250.8mm)