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Bit drile rolair rothlach API IADC517 4.5 òirleach (114mm) ann an stoc
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Pìos putan IADC517 118mm airson drileadh creige tobar geo-riaghailteach.
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Factaraidh API de rolair rothlach IADC517 4 3/4 ″ (120mm)
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Pìosan seulaichte putan rothlach API IADC517 5 1/4 ″ (133mm) ann an stoc
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Tungsten Carbide Cuir a-steach pìos drileadh creige IADC517 5 7/8 ″ (149mm)
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API Uill a’ drileadh pìos tricone IADC517 6 ″ (152.4mm) airson a reic
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Pìos drile rolair tricone IADC517 6 1/4 ″ (159mm)
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Bidh putan roc seulaichte TCI a ’bualadh IADC517 6 1/2 ″ (165mm) airson drileadh math
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TCI tricone bit IADC517 7 1/2 ″ (190mm)
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Bit Tricone Deep Well IADC517 7 7/8 òirleach (200mm)
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API Tricone Bit IADC517 8.5 òirleach (215.90mm)
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Pìos drileadh API Tricone IADC517 8 3/4 òirleach (222mm) ann an stoc