8 1/2 in GFK08BVPS(215.9 mm)

Product ID: 0062645010 ER 8524 IADC 437X

Design Specifications

Bearing TypeSpinodal* 2 Bearing w/Silver Plated Components
Seal TypeGemini Twin High Temperature Seal System
Bit Connection Type4 1/2 Reg
Journal Angle (°)32.5
Offset (inches)0.312
RowsTotal: 14 Inner: 8 Gage: 6
Inserts/TeethTotal: 125 Inner: 53 Gage: 72

Operating Parameters

Weight on Bit15,000 To 50,000 (lbs)
6,818 To 22,725 (daN)
7 To 22 (Tonnes)
Rotary Speed (RPM)250 To 50
Recommended Make-up Torque16,600 To 21,600 pound ft
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.

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.

The PS feature offers strategically placed clusters of semi-round top (SRT) shaped carbide inserts that maximize leg protection, prevent bit wear, and substantially increase bit life in abrasive formations.