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ເຈາະ tungsten carbide ຄວາມໄວສູງ IADC537 5 7/8″ (149mm)
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Tricone rock bits IADC537 6 ນິ້ວ (152.4 ມມ)
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Rotary tricone bit IADC537 6 1/4 ນິ້ວ (159 ມມ)
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TCI tricone rock bits IADC537 6 3/4″ (171 ມມ)
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API ປຸ່ມບິດ IADC537 6.5 ນິ້ວ (165mm) ພ້ອມລາຄາຜ່ອນ
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TCI rock bit IADC537 7 1/2” (190 ມມ)
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API ໂຮງງານຜະລິດ tricone bit IADC537 7 5/8 ” (193.7 ມມ)
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TCI tricone bit IADC537 7 7/8 ນິ້ວ (200 ມມ)
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Tungsten Carbide Insert Bit IADC537 8 1/2″ (215.9 ມມ)
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API ປຸ່ມເຈາະຫີນ IADC537 8 3/4″ (222.2mm) ພ້ອມລາຄາຜ່ອນ
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ແຜ່ນເຈາະ TCI IADC537 9 1/2″ (241mm) ສໍາລັບ hard rock oilwell
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API rock well drilling bits IADC537 10 5/8 ນິ້ວ (269mm)