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Ma bits a miyala ya TCI tricone IADC537 6 3/4″ (171mm)
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Button bit ya API IADC537 mainchesi 6.5 (165mm) ndi mtengo wotsika
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TCI rock bit IADC537 7 1/2” (190 mm)
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API factory tricone bit IADC537 7 5/8 ” (193.7 mm)
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TCI tricone bit IADC537 mainchesi 7 7/8 (200 mm)
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Tungsten Carbide Insert Bit IADC537 8 1/2″(215.9mm)
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API button rock drill bit IADC537 8 3/4″(222.2mm) ndi mtengo wotsika
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TCI drill bit IADC537 9 1/2″(241mm) ya chitsime cha mafuta cha miyala yolimba
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Ma bits obowola zitsime za miyala a API IADC537 mainchesi 10 5/8 (269mm)
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API ma cones atatu bit IADC537 11 5/8″(295mm) ya chitsime cholimba
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Chozungulira cha tri-cone bit IADC537 12 1/4″(311mm)
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Chitsulo chobowolera miyala cha Far Eastern chotsekedwa ndi chitsulo IADC537 13 5/8″(346mm)