5 7/8 IADC 517 Tricone Tr Bit, TCI Drill Bit, Drilling Tools - China TCI Bit, Tricones

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TCI and Mt Tricone Bit 8 3/4 Inch IADC437/537g IADC117/217g Drill Bit/Roller Cone Bit for Water/Oil/Gas Well Drilling - China Drilling Bit, Drill Bits

9 7/8 New HQ517G IADC 517 TCI Rock Bit

Wholesale Renewable Design for Tri Cone Bit - TCI tricone bit IADC517 7 1/2″ (190mm) – FAR EASTERN Manufacturers and Factory

API 5 7/8' IADC517 TCI Drill Bit / Tricone Bits - China Drilling Bit, Tungsten Carbide Insert Bit

TCI and Mt Tricone Bit 8 3/4 Inch IADC437/537g IADC117/217g Drill Bit/Roller Cone Bit for Water/Oil/Gas Well Drilling - China Drilling Bit, Drill Bits

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Manufacturer IADC Code 517/537/617/637 TCI Tricone Drill Bits in Stock for Hard Rock Drilling - China Bit Tricone, Rock Tricone Bit

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Wholesale Renewable Design for Tri Cone Bit - TCI tricone bit IADC517 7 1/2″ (190mm) – FAR EASTERN Manufacturers and Factory