8 1/2 in K705(215.9 mm)

Product ID: 6420093801

Design Specifications

Avg. SPC116
Face Cutters(34) 13mm
Gauge Cutters(8) 13mm
Cone Cutters(4) 13mm
Blade Count8
Hydraulics (sq in)n/a
Bit Connection4 1/2 Reg Box
LengthMake-Up: 16 5/8 in Overall: 16 5/8 in
Fishing NeckDiameter: 0" Length: 0"
GaugeLength: 1" Protection: 7" Turbine Sleeve

Operating Parameters

Rotary Speed700/2000
Weight-on-Bit2,000 To 10,000 (lbs)
909 To 4,545 (daN)
1 To 4 (Tonnes)
Flow Rate (GPM)350 To 550
Hydraulic Horsepower (HSI)1 To 4
The operating parameters listed here are general parameters, please contact your local Smith Bits representative for precise recommendations for your individual well.



Bit design is available with ONYX fixed cutters for improved thermal stability in harder, more abrasive formations, resulting in greater wear resistance.

The PX feature places thermally stable diamond inserts (TSP) on the gauge to maximize gauge retention and extend bit life.

Turbine sleeves reduce vibration and hole spiraling in turbine applications. This feature increases bit life and enables the bit to achieve maximum ROP