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API rotary tricone bit IADC617 6 ”(152mm) maka igwu olulu mmiri
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Tricone rock bit IADC617 8 1/2″ (215.9mm) maka igwu olulu mmiri
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Onye na-emepụta API nke tricone rock bit IADC617 9 7/8 inch” (250mm)
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Ụlọ ọrụ API nke tricone roller bit IADC617 12 1/4 inch (311.1mm)
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Ụlọ ọrụ API nke obere ihe eji egwupụta nkume IADC617 17 1/2 inch (444.5mm) dị na ngwaahịa
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TCI tricone bit IADC617 6 1/2″ (165mm) maka igwe mkpọpu ala
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Ụlọ ọrụ API nke TCI tricone bit IADC617 5 5/8″ (142.9mm)