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Igiciro gito cyo gucukura bits IADC217 14 3/4 santimetero (374mm) kubutare bukomeye
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gucukura byinshi bits IADC217 17.5 santimetero (444.5mm)
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Imyitozo ya Tricone bits IADC114 15.5 cm (394mm) mububiko
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Uruganda rwinyo rwa tricone biti uruganda IADC114 17.5 santimetero (444.5mm)
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Gucukura isima ya sima bits IADC127 4 3/4 santimetero (120mm)
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API yihariye imyitozo ya bits IADC126 5 1/4 santimetero (133mm) kubutare bukomeye
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Urusyo rw'amenyo yo gucukura neza IADC215 17.5 santimetero (444.5mm)
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API tricone drill bits igiciro IADC216 4 5/8 santimetero (118mm)
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Byiza cyane tricone bits IADC216 santimetero 6 (152mm)
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API yo gucukura bits itanga isoko IADC216 5 3/4 santimetero (146mm)
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Gucukura API triocne IADC125 17 1/2 santimetero (444.5mm)
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API gucukura neza IADC126 7 1/2 santimetero (190.5mm)