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Solaraiche API de phìosan drileadh tobar creige domhainn IADC537 9 5/8 ″ (244.5mm)
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Pìos putan API TCI IADC537 9 7/8 ″ (250mm) airson drileadh tobar creige cruaidh
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Bit Putan Rotary IADC537 3 7/8 ″ (98mm)
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Bits Tricone IADC537 4 5/8 ″ (118mm)
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Pìos drile tricone IADC537 4 3/4 ″ (120.6mm)
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Pìos creige tricone API IADC537 5 1/4 ″ (133mm)
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Pìos drile creige API IADC537 5 1/2 ”(139.7 mm) airson tobar cruaidh
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Pìos drile API IADC537 5 5/8 ″ (142.9mm)
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Pìos drile carbide tungsten àrd-astar IADC537 5 7/8 ″ (149mm)
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Bidh creag triccone a’ sgoltadh IADC537 6 òirleach (152.4 mm)
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Bit tricone rothlach IADC537 6 1/4 òirleach (159 mm)
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Bidh creag tricone TCI IADC537 6 3/4 ″ (171mm)