8 1/2 in FHKi69UYOD1VPS(215.9 mm)

Product ID: 0063633010 IADC 647Y

Design Specifications

Bearing TypeSpinodal™ 2 Bearing
Seal TypeDual Material High Temp Bullet Seals
Bit Connection Type4 1/2 Reg
Journal Angle (°)36
Offset (inches)0.031
RowsTotal: 17 Inner: 14 Gage: 3
Inserts/TeethTotal: 191 Inner: 146 Gage: 45

Operating Parameters

Weight on Bit30,000 To 60,000 (lbs)
13,635 To 27,270 (daN)
14 To 27 (Tonnes)
Rotary Speed (RPM)110 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.



The geometry of conical inserts is optimized to reduce insert breakage and maximize ROP in WOB sensitive formations.

100% diamond enhanced heel row inserts provide maximum durability in extremely abrasive applications. The bit will drill longer intervals of full gauge hole, and eliminate the need for expensive reaming operations.

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.