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API TCI tricone rotsboarring IADC417 6 "(152mm) foar hurde put
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API-boarringsbit IADC417 12 1/4 "(311mm) foar hurde rots
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API tricone drill bit IADC437 6 "(152mm) foar boarring
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TCI tricone bit IADC437 12 1/4 ″ (311mm) foar boarring
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API fabryk fan rock roller cones bits IADC437 8.5 "foar boarjen
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Rotary drill bit IADC447 6.5 inch (165mm)
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API Rotary roller drill bit IADC517 4.5 inch (114mm) in stock
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Knopbit IADC517 118mm foar geotermyske boarring fan rots.
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API fabryk fan rotearjende roller bit IADC517 4 3/4 ″ (120mm)
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API rotearjende knop fersegele bits IADC517 5 1/4 "(133mm) op foarried
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Tungsten Carbide Insert rotsboarring IADC517 5 7/8" (149mm)
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API-boarring tricone bit IADC517 6 "(152.4mm) te keap