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u'u vili fa'aoloa IADC637 4 5/8″ (118mm)
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Tricone roller bit IADC637 4 3/4″ (120mm) mo le viliina o maa malo
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Polo nifo nifo tricone u IADC637 5.5″ (140mm)
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API falegaosimea o le TCI tricone biit IADC637 6 "(152.4mm) i totonu
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API TCI tricone papa papa IADC637 6 3/4″ (171.4mm)
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API Tricone bit tau IADC637 8 1/2 ”(215.9mm)
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vili fa'amau fa'amau IADC617 12 1/4 inisi (311mm)
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API tricone vili vili gaosi IADC637 12 1/4” (311.1mm)
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u'amea fa'amaufa'ailoga vili fa'amau IADC637 14 3/4” (374.6mm) mo vaieli loloto
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E tolu kosi bit IADC637 17 1/2 ” (444.5mm)
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Tricone bits supplier IADC637 6.5 inisi (165mm) mo papa malo
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Pi'i ta'avale vili IADC637 9 7/8” (250.8mm)