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API qoyatosh quduqlarini burg'ilash uchun uchlari IADC537 10 5/8 dyuym (269 mm)
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Qattiq quduq uchun API uch konusli bit IADC537 11 5/8″(295 mm)
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Aylanuvchi uch konusli bit IADC537 12 1/4″(311mm)
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Metall muhrlangan Uzoq Sharq qoyatosh burg'ulash uchi IADC537 13 5/8″(346 mm)
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Chuqur quduq uchun IADC537 15.5″(393.7 mm) trikonli rolikli uchli burg'ulash
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TCI burg'ulash uchi IADC537 16″(406.4mm)
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Volfram karbidli trikonli uchlik IADC537 17.5″ (444.5 mm)
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API va ISO trikon rolikli uchi IADC537 26″(660.4mm)