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API drilling rig bits supplier IADC216 5 3/4 inches (146mm)
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Milled tooth bits IADC216 6.5 inches (165mm) for well drilling
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API tricone drilling IADC216 7 5/8 inches (194mm) for oil rig
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Three cones bits factory IADC217 3 7/8 inches (98mm)
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Rotary drilling bits IADC217 6 inches (152mm)
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API milled tooth three cones bits IADC217 7.5 inches (190mm) in stock
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API oil steel tooth bits IADC217 8.5 inches (215mm) for rock drilling
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Deep well drilling bits IADC217 11 5/8 inches (295.3mm) for hard rock
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API Mill tooth bits IADC217 12 1/4 inches (311mm) for well drilling
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Low price drilling bits IADC217 14 3/4 inches (374mm) for hard rock
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Matrix body PDC diamond drill bit M137 5 7/8 inches (149mm)
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Oil well drilling steel body PDC drill bits for hard oilwell