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Obere eriri cone atọ IADC517 13 5/8″ (346mm)
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Ngwa ndọda bọtịnụ API IADC517 17 1/2″ (444.5mm)
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Onye na-enye API tricone bit IADC117 5 7/8 inch (149mm)
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Bits tricone ezé a kpụrụ akpụ nke API IADC114 12 1/4″(311mm)
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Zụta obere tricone IADC117 12 1/4 inch (311mm)
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Isi olulu mmiri IADC126 3 7/8 inch (98.4mm) maka nkume siri ike
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Ụlọ ọrụ mmepụta ihe eji egwu olulu mmiri IADC126 17 1/2 inch (444.5mm)
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Ụlọ ọrụ Tricone bit IADC126 26 sentimita asatọ (660mm)
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Ụlọ ọrụ mmepụta ihe eji egwu mmiri zuru oke IADC127 6 1/4 inch (158.8mm)
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Onye na-enye obere ihe Tricone IADC127 7.5 sentimita asatọ (190mm)
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Ngwakọta API rig IADC127 8 1/2 sentimita asatọ (215mm) maka nkume siri ike
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Nkeji Tricone dị na ngwaahịa IADC127 8 3/4 inch (222mm)