6 3/4 in Z613(171.45 mm)

Product ID: 66556A0001 ER 26759

Design Specifications

Total Cutters38
Total Stinger Element Count22
Stinger Element Size9/16 in
Cutter Size13mm (1/2 in)
Face Cutters(27) 13mm
Gauge Cutters(6) 13mm
Cone Cutters(5) 13mm
Blade Count6
Nozzles6 Standard Series 40N
Bit Connection3 1/2 Reg
Junk Slot Area, in27.93
GaugeLength: 2" Protection: Options Available
LengthMake-Up: 8.285 Overall: 11.972
Fishing NeckDiameter: 4.5 in Length: 2.889 in

Operating Parameters

Bit Speed140 To 300 RPM
Weight-on-Bit2,500 To 27,000 (lbs)
1,136 To 12,272 (daN)
1 To 12 (Tonnes)
Flow Rate galUs/min200 To 400
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque6,600 To 9,850 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.