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Umthengisi we-API weebhithi zokubhola imingxunya yelitye elinzulu IADC537 9 5/8″(244.5mm)
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I-API TCI button bit IADC537 9 7/8″(250mm) yokugrumba imithombo yamatye aqinileyo
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I-Rotary Button Bit IADC537 3 7/8″ (98mm)
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Iibhithi zeTricone drill IADC537 4 3/4″ (120.6mm)
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I-API tricone drill bit IADC537 14 3/4″ (374mm) yelitye eliqinileyo
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Iibhiti zeTricone 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) yesixhobo esiqinileyo
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Iibhithi zokubhola ze-API IADC537 5 5/8″ (142.9mm)
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Iibhithi zokubhola ze-tungsten carbide ezinesantya esiphezulu IADC537 5 7/8″ (149mm)
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Iibhithi zelitye leTricone IADC537 6 intshi (152.4 mm)
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I-Rotary tricone bit IADC537 6 1/4 intshi (159 mm)