8 3/4 in Z813(222.25 mm)

Product ID: 66606A0001

Design Specifications

Total Cutters60
Total Stinger Element Count27
Stinger Element Size9/16 in
Cutter Size13mm (1/2 in), 16mm (5/8 in)
Face Cutters(29) 13mm
Gauge Cutters(8) 13mm
Cone Cutters(7) 16mm
Back-Up Cutters(16) 13mm
Blade Count8
Nozzles8 Standard Series 50N
Bit Connection4 1/2 Reg
Junk Slot Area, in29.41
GaugeLength: 3" Protection: Options Available
LengthMake-Up: 9.757 Overall: 13.945
Fishing NeckDiameter: 6 Length: 3.302

Operating Parameters

Bit SpeedSuitable for Rotary and PDM
Weight-on-Bit4,000 To 40,000 (lbs)
1,818 To 18,180 (daN)
2 To 18 (Tonnes)
Flow Rate galUs/min325 To 800
Hydraulic Horsepower, HSI1 To 6
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.



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.