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API batani kubowola pang'ono IADC517 17 1/2″ (444.5mm)
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Zida Zazitsulo Zazitsulo IADC117 3 7/8 mainchesi (98.4mm)
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API chitsime kubowola mutu IADC117 4 5/8 mainchesi (117.5mm) kwa ogwirizira
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API trione bits supplier IADC117 5 7/8 mainchesi (149mm)
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API Tricone kubowola bits IADC111 15.5 mainchesi( 394mm) mu katundu
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API kubowola bits ogulitsa IADC117 8 3/4 mainchesi (222mm) pobowola bwino
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API mphero zobowola dzino trione IADC114 12 1/4″(311mm)
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Tricone kubowola bits IADC117 7.5 mainchesi (190mm) kwa hard rock bwino
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Tricone rock bits IADC117 7 7/8 mainchesi (200mm)
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API fakitale ya zitsulo dzino trione bits IADC117 6 mainchesi (152mm)
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API Rotary wodzigudubuza bits IADC117 9.5 mainchesi (241mm) mu katundu
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API fakitale ya trione rock kubowola bits IADC117 8 1/2 mainchesi (216mm)