6-3/4 Inch Tricone Drill Bit IADC 547X | TCI Tungsten Carbide Insert Roller Cone Bit | 3-1/2” API Regular | Sealed Bearing | Medium-Hard to Hard Rock Drilling

6-3/4 Inch TCI Tricone Roller Cone Drill Bit – IADC 547X This 6-3/4 inch TCI tricone roller cone drill bit with IADC code 547X is engineered for drilling medium-hard to hard rock formations where durability, stability, and consistent performance are critical. The tungsten carbide insert (TCI) cutting structure delivers excellent abrasion resistance while maintaining effective rock penetration. The bit is equipped with a sealed friction bearing system with O-ring seals to reduce internal wear and support smooth rotational performance under high loads. Multiple rows of inserts, reinforced gauge protection, and hardfaced shirttails help resist erosion and minimize gauge loss in abrasive drilling environments. Featuring a 3-1/2" API Regular connection, this tricone drill bit is suitable for oil & gas, geothermal, mining, and water well drilling applications where reliable performance and long service life are required. Technical Specifications:Bit Diameter: 6-3/4 inchBit Type: Tricone / Roller ConeCutting Structure: Tungsten Carbide Insert (TCI)IADC Code: 547XBearing Type: Sealed friction bearingSeal Type: O-ringJournal Angle: 33°Number of Rows: 11Inner Row Inserts: 62Heel (Gauge) Inserts: 36Connection: 3-1/2" API RegularCirculation: 3 side jet nozzlesRecommended Weight on Bit (WOB): 19,500 – 42,000 lbsRecommended RPM: 50 – 150

• Medium-Hard to Hard Formation Drilling Designed for drilling limestone, dolomite, hard shale, and abrasive sandstone with UCS ratings from approximately 15,000–32,500 PSI.
• TCI Tricone Cutting Structure Tungsten carbide inserts arranged in multiple rows provide durability, wear resistance, and consistent penetration in challenging formations.
• Sealed Friction Bearing System O-ring sealed bearing design helps protect internal components, supporting longer service life in demanding drilling conditions.
• API Standard Connection Equipped with a 3-1/2 inch API Regular (Reg.) pin, compatible with standard rotary drilling assemblies.
• Optimized Fluid Circulation Three side jet nozzles assist in cuttings removal and bit cooling during operation.