8 3/4 in MDiZ616(222.25 mm)

Product ID: 65393C0001 ER 25863

Design Specifications

Total Cutters36
Cutter Size16mm (5/8 in)
Face Cutters(25) 16mm
Gauge Cutters(6) 16mm
Cone Cutters(5) 16mm
Blade Count6
Nozzles6 Standard Series 60N
Bit Connection4 1/2 Reg
Junk Slot Area (sq in)12.442
GaugeLength: 3" Protection: Options Available
LengthMake-Up: 10 5/16 in Overall: 14 1/2 in
Fishing NeckDiameter: 6" Length: 3 7/16 in

Operating Parameters

Bit SpeedSuitable for Rotary Steerable BHA and Downhole Motors
Weight-on-Bit18,000 To 30,000 (lbs)
8,181 To 13,635 (daN)
8 To 14 (Tonnes)
Flow Rate (GPM)300 To 650
Hydraulic Horsepower (HSI)1 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.



The Stinger element features a highly distinctive conical geometry with a thick synthetic diamond layer, engineered to resist high impact loads and abrasive wear for superior durability.

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.

The PX feature places thermally stable diamond inserts (TSP) on the gauge to maximize gauge retention and extend bit life.

Bit design is available with advanced ONYX cutter technology. This includes the next generation ONYX II cutters that have superior abrasive wear and exceptional resistance to thermal degradation, enhancing cutter durability for increased footage drilled and faster ROP.