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API tricôneorum cuspides praebitor IADC117 5 7/8 unciarum (149mm)
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Terebrae triconicae dentibus fresatis API IADC114 12 1/4″ (311mm)
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Eme terebras triconicas IADC117 12 1/4 unciarum (311mm)
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Caput putei perforatorium IADC126 3 7/8 unciarum (98.4 mm) pro saxo duro
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IADC126, fabrica terebrarum machinae puteorum perforandae, 17 1/2 unciae (444.5 mm)
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Terebrae triconicae officinae IADC126 26 pollices (660mm)
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Terebrae integrae fabricae IADC127 6 1/4 unciarum (158.8 mm)
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Terebrae tricônicae praebitor IADC127 7.5 unciarum (190mm)
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Terebrae API IADC127 8 1/2 unciae (215 mm) ad saxum durum
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Terebrae triconicae in promptu IADC127 8 3/4 unciae (222mm)
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Fresae dentatae API in promptu IADC127 9.5 unciarum (241mm)
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Terebrae puteorum profundorum IADC127 13 5/8" (346mm) in promptu