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Tricone roller drill bits IADC517 6 1/4″ (159mm)
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I-TCI itywinwe amaqhosha elitye lelitye IADC517 6 1/2″ (165mm) yokomba umthombo
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I-TCI trione bit IADC517 7 1/2″ (190mm)
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Ubunzulu beTricone Bit IADC517 7 7/8 intshi (200mm)
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API Tricone Bit IADC517 8.5 intshi (215.90mm)
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API Tricone drilling bit IADC517 8 3/4 intshi (222mm) kwisitokhwe
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Tricone Roller Bits IADC517 9.5 intshi (241mm)
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I-Rotary tricone Bits IADC517 9 7/8″ (250mm) yelitye eliqinileyo
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Iicones ezintathu zelitye bit IADC517 10 5/8″ (269mm)
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I-Rotary rock bit IADC517 11 5/8″ (295mm)
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I-Rotary trione bit IADC517 12 1/4″ (311mm)
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Iicones ezintathu zincinci IADC517 13 5/8″ (346mm)