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Likotoana tsa ho phunya seliba sa mafika sa API IADC537 10 5/8 inches (269mm)
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Likhoune tse tharo tsa API IADC537 11 5/8″(295mm) bakeng sa seliba se thata
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Karolo ea khoune e potolohang ea tri-cone IADC537 12 1/4″(311mm)
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Karolo ea tšepe e koetsoeng ea ho cheka majoe Bochabela bo Hōle IADC537 13 5/8″(346mm)
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Ho tjheka ha tricone roller bit IADC537 15.5″(393.7mm) bakeng sa seliba se tebileng
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Karolo ea ho phunya ea TCI IADC537 16″(406.4mm)
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Tungsten Carbide Insert tricone bit IADC537 17.5″ (444.5mm)
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API le ISO tricone roller bit IADC537 26″(660.4mm)