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Pìosan drile ann an stoc IADC127 7 7/8 òirleach (200mm)
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Pìosan tricone lasaichte IADC127 9 5/8” (244.5mm)
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Ceann rothlach airson rig IADC127 9 7/8” (250.8mm)
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3 buillean rolair còn IADC127 11 5/8” (295mm)
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Pìosan drileadh tobar domhainn IADC127 12 1/4” (311mm)
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Pìosan drileadh tobair gnàthaichte IADC127 14 3/4” (374mm)
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Pìosan tricone mòr-reic IADC127 17.5 òirleach (444.5mm)