6 in Z316(152.4 mm)

Product ID: 66863A0001 ER 26958

Design Specifications

Total Cutters17
Total Stinger Element Count8
Stinger Element Size9/16 in
Cutter Size16mm (5/8 in)
Face Cutters(7) 16mm
Gauge Cutters(6) 16mm
Cone Cutters(4) 16mm
Blade Countn/a
Nozzles3 Standard 24 Fixed Port, 1 Standard 18 Fixed Port
Bit Connection3 1/2 Reg
Junk Slot Area, in27.384
GaugeLength: 4" Protection: Options Available
LengthMake-Up: 9.872 in Overall: 13.559 in
Fishing NeckDiameter: 4.5 in Length: 3.318 in

Operating Parameters

Bit Speed140 To 300 RPM
Weight-on-Bit4,000 To 30,000 (lbs)
1,818 To 13,635 (daN)
2 To 14 (Tonnes)
Flow Rate galUs/min325 To 800
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque5,700 To 10,500 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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6 in Z316(152.4 mm)



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.

The center location of the Stinger conical diamond in the bit enhances its stability to mitigate whirl and other artifacts that waste energy and reduce ROP. The Stinger element also provides an efficient mechanism to drill the very center of the borehole.

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.