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Likhoune tse tharo tsa lefika IADC517 10 5/8″ (269mm)
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Li-Rotary tricone Bits IADC517 9 7/8″ (250mm) bakeng sa lefika le thata
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Li-Tricone Roller Bits IADC517 9.5 inches (241mm)
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Tebileng Well Tricone Bit IADC517 7 7/8 inches (200mm)
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Likotoana tsa konopo tsa lefika tse koetsoeng tsa TCI IADC517 6 1/2″ (165mm) bakeng sa ho tjheka seliba
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Likotoana tsa ho phunya li-drill tsa Tricone IADC517 6 1/4″ (159mm)
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Li-bits tse koetsoeng tsa konopo ea API e potolohang IADC517 5 1/4″ (133mm) li teng setokong