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Umhlinzeki we-API wezingcezu zokubhoboza imithombo yamatshe ajulile i-IADC537 9 5/8″(244.5mm)
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I-API TCI button bit IADC537 9 7/8″(250mm) yokubhoboza imithombo yamatshe aqinile
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I-Rotary Button Bit IADC537 3 7/8″ (98mm)
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Amabhithi okubhoboza eTricone IADC537 4 3/4″ (120.6mm)
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I-API tricone drill bit IADC537 14 3/4″ (374mm) yedwala eliqinile
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Amabhithi eTricone IADC537 4 5/8″ (118mm)
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I-API tricone rock bit IADC537 5 1/4″ (133mm)
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I-API rock drill bit IADC537 5 1/2” (139.7 mm) yomthombo oqinile
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Amabhithi okubhoboza e-API IADC537 5 5/8″ (142.9mm)
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Amabhithi okubhola e-tungsten carbide anesivinini esiphezulu i-IADC537 5 7/8″ (149mm)
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Ama-bits e-Tricone rock IADC537 amasentimitha angu-6 (152.4 mm)
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I-rotary tricone bit IADC537 6 1/4 amayintshi (159 mm)