5 7/8 in Z613(149.225 mm)

Product ID: 66889A0001 ER 26989

Design Specifications

Total Cutters34
Total Stinger Element Count16
Stinger Element Size9/16 in
Cutter Size13mm (1/2 in)
Face Cutters(14) 13mm
Gauge Cutters(8) 13mm
Cone Cutters(6) 13mm
Back-Up Cutters(6) 13mm
Blade Count6
Nozzles1 Standard Series 40N, 2 Standard Series 50N, 2 Standard 16 Fixed Port
Bit Connection3 1/2 Reg
Junk Slot Area, in24.501
GaugeLength: 2" Protection: Options Available
LengthMake-Up: 7.92 Overall: 11.607
Fishing NeckDiameter: 4.5 Length: 3.164

Operating Parameters

Bit Speed140 To 300 RPM
Weight-on-Bit5,000 To 30,000 (lbs)
2,272 To 13,635 (daN)
2 To 14 (Tonnes)
Flow Rate galUs/min125 To 250
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.