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Tricone Roller Bits IADC517 9.5 inches (241mm)
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Rotary tricone Bits IADC517 9 7/8″ (250mm) bakeng sa lefika le thata
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Likhoune tse tharo tsa rock bit IADC517 10 5/8″ (269mm)
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Rotary rock bit IADC517 11 5/8″ (295mm)
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Rotary trione bit IADC517 12 1/4″ (311mm)
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Likhoune tse tharo tse nyane IADC517 13 5/8 ″ (346mm)
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Konopo ea API drill bit IADC517 17 1/2″ (444.5mm)