16 in Z319S(406.4 mm)

Product ID: 66858A0001 ER 26954

Design Specifications

Total Cutters40
Total Stinger Element Count12
Stinger Element Size9/16 in
Cutter Size19mm (3/4 in)
Face Cutters(24) 19mm
Gauge Cutters(6) 19mm
Cone Cutters(10) 19mm
Blade Count3
Nozzles9 Standard Series 60N
Bit Connection7 5/8 Reg
Junk Slot Area, in268.36
GaugeLength: 3" Protection: Options Available
LengthMake-Up: 13.99 in Overall: 19.18 in
Fishing NeckDiameter: 9.28 in Length: 4.19 in

Operating Parameters

Bit SpeedSuitable for Rotary & PDM
Weight-on-Bit4,000 To 45,000 (lbs)
1,818 To 20,452 (daN)
2 To 20 (Tonnes)
Flow Rate galUs/min750 To 1000
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque61,850 To 79,800 pound ft
The operating parameters listed here are general parameters, please contact your local Smith Bits representative for precise recommendations for your individual well.

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16 in Z319S(406.4 mm)



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.