8 3/8 in K507(212.725 mm)

Product ID: 64379A0801 ER 25686

Design Specifications

Avg. SPC150
Face Cutters(75) 13mm
Gauge Cutters(36) 13mm
Cone Cutters(4) 13mm
Blade Count18
Hydraulics (sq in)1.55 TFA
Bit Connection4 1/2 Reg
LengthMake-Up: 11 7/16 in Overall: 15 5/8 in
Fishing NeckDiameter: 6" Length: 2 1/4 in
GaugeLength: 5" Protection: Options Available

Operating Parameters

Rotary SpeedSuitable for Turbine & PDM
Weight-on-Bit7,000 To 30,000 (lbs)
3,182 To 13,635 (daN)
3 To 14 (Tonnes)
Flow Rate (GPM)300 To 600
Hydraulic Horsepower (HSI)1 To 5
The operating parameters listed here are general parameters, please contact your local Smith Bits representative for precise recommendations for your individual well.



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

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