12 1/4 in GFSK10BODV(311.15 mm)

Product ID: 0059949190 ER 8403 IADC 437X

Design Specifications

Bearing TypeSpinodal* 2 Bearing w/Silver Plated Components
Seal TypeHigh Temperature Fabric Competent Seal
Bit Connection Type6 5/8 Reg
Journal Angle (°)32.5
Offset (inches)0.375
RowsTotal: 12 Inner: 9 Gage: 3
Inserts/TeethTotal: 136 Inner: 101 Gage: 35

Operating Parameters

Weight on Bit15,000 To 60,000 (lbs)
6,818 To 27,270 (daN)
7 To 27 (Tonnes)
Rotary Speed (RPM)50 To 250
The operating parameters listed here are general parameters, please contact your local Smith Bits representative for precise recommendations for your individual well.



Advanced fabric composite seals and specialized high temperature grease designed with improved heat and wear resistance to enhance bit life at elevated temperatures.

Binary carbide gauge places wear resistant semi-round top carbide inserts between the primary gauge inserts to enhance gauge retention in transitional drilling. This substantially improves gauge durability and allows longer in-gauge bit runs.

Diamond enhanced heel inserts maintain gauge in abrasive, hard formation drilling and significantly increase cone durability. This feature extends bit life and ensures that a full gauge hole is drilled.

V-Flo™ directs nozzles to the leading side of the following bit cone to maximize cleaning. The resulting upward spiral flow enhances bottom hole cleaning, prevents bit balling and allows the bit to drill at maximum ROP.