6 1/8 in Z6(155.575 mm)

Product ID: 66472A0001 ER 26689

Design Specifications

Total Cutters8
Total Stinger Element Count34
Stinger Element Size9/16 in
Cutter Size13mm (1/2 in)
Face Cuttersn/a
Gauge Cutters(8) 13mm
Blade Count6
Nozzles3 Standard 13 Fixed Port, 3 Standard 12 Fixed Port
Bit Connection3 1/2 Reg
Junk Slot Area, in25.595
GaugeLength: 2" Protection: Options Available
LengthMake-Up: 8.197 in Overall: 11.884 in
Fishing NeckDiameter: 4.5 in Length: 3.092 in

Operating Parameters

Bit Speed140 To 300 RPM
Weight-on-Bit3,000 To 25,000 (lbs)
1,364 To 11,362 (daN)
1 To 11 (Tonnes)
Flow Rate galUs/min125 To 250
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque6600 To 9850 pound ft
The operating parameters listed here are general parameters, please contact your local Smith Bits representative for precise recommendations for your individual well.



Bit design and performance have been certified through the validation process prescribed by IDEAS simulation technology.

The Stinger's unique conical geometry delivers high point loading to fracture tough-to-drill formations more efficiently.

Placed on the blade, Stinger conical diamond elements offer improved impact resistance when drilling through inter-bedded formations or when hard inclusions such as chert or conglomerates are encountered.

The center location of the Stinger conical diamond in the bit enhances its stability to mitigate whirl and other artifacts that waste energy and reduce ROP. The Stinger element also provides an efficient mechanism to drill the very center of the borehole.

Bit design is available with RockStorm PDC technology. These all-in-one cutters break the paradigm and provide ultimate wear resistance and ultimate impact resistance in the same PDC cutter. As a result, faster drilling rates are delivered while increasing overall run length.