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API freesbits op foarried IADC127 9,5 inch (241 mm)
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Djippe putboarringsbits IADC127 13 5/8” (346mm) op foarried
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Leveransier fan rolkegelsbits IADC216 5 5/8 inch (143 mm)
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Fersegele rolbits IADC216 5 7/8 inch (149 mm)
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Tricone bits op foarried IADC216 6 3/4 inch (171mm)
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Roterende dillebit IADC216 7 7/8 inch (200mm)
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Leveransier fan rotearjende bits IADC216 10 5/8 inch (269 mm)
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Keapje boarbits IADC216 17.5″ (444.5mm)
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Tricone bits IADC217 4.5 inch (114mm) foar djippe rotsputboarring
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API fersegele rolkegelboar foar it boarjen fan IADC217 5 7/8 inch (149.2mm)
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API-bits leveransier IADC217 8 3/4 inch (222.2mm)
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gruthannel boarbits IADC217 17,5 inch (444,5 mm)