11 5/8 in Z516(295.275 mm)

Product ID: 66403A0001 ER 26626

Design Specifications

Total Cutters40
Total Stinger Element Count31
Stinger Element Size9/16 in
Cutter Size16mm (5/8 in)
Face Cutters(22) 16mm
Gauge Cutters(5) 16mm
Cone Cutters(13) 16mm
Blade Count5
Nozzles7 Standard Series 60N, 1 Standard Series 50N
Bit Connection6 5/8 Reg
Junk Slot Area, in234.07
GaugeLength: 3" Protection: Options Available
LengthMake-Up: 10.838 in Overall: 15.776 in
Fishing NeckDiameter: 7.88 in Length: 3.449 in

Operating Parameters

Bit Speed140 To 300 RPM
Weight-on-Bit7,500 To 50,000 (lbs)
3,409 To 22,725 (daN)
3 To 22 (Tonnes)
Flow Rate galUs/min500 To 1200
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque47300 To 47800 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.

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.

Placing thermally stable diamond inserts (TSP) on the gauge maximizes gauge retention and extends bit life.