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Tricone roller drill bits IADC517 6 1/4 ″ (159mm)
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TCI ifunze buto ya buto ya bits IADC517 6 1/2 ″ (165mm) yo gucukura neza
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TCI tricone bit IADC517 7 1/2 ″ (190mm)
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Byimbitse Byiza Tricone Bit IADC517 7 7/8 santimetero (200mm)
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API Tricone Bit IADC517 8.5 santimetero (215.90mm)
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API Tricone gucukura bit IADC517 8 3/4 santimetero (222mm) mububiko
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Tricone Roller Bits IADC517 9.5 santimetero (241mm)
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Rotary tricone Bits IADC517 9 7/8 ″ (250mm) kubutare bukomeye
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Imirongo itatu ya rock bit IADC517 10 5/8 ″ (269mm)
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Rotary rock bit IADC517 11 5/8 ″ (295mm)
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Rotary tricone bit IADC517 12 1/4 ″ (311mm)
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Imirongo itatu yarumye IADC517 13 5/8 ″ (346mm)