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Tricone Roller Bits IADC517 9.5 iniha (241mm)
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Rotary tricone Bits IADC517 9 7/8″ (250mm) no ka pōhaku paʻa
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ʻEkolu cones pōhaku bit IADC517 10 5/8″ (269mm)
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Bit pōhaku Rotary IADC517 11 5/8″ (295mm)
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Rotary tricone bit IADC517 12 1/4″ (311mm)
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ʻEkolu cones bit IADC517 13 5/8″ (346mm)
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Puka puolo API IADC517 17 1/2″ (444.5mm)