6 3/4 in MDiZ613(171.45 mm)

Product ID: 66732A0001 ER 26883

Design Specifications

Total Cutters30
Cutter Size11mm (7/16 in), 13mm (1/2 in)
Face Cutters(24) 13mm
Gauge Cuttersn/a
Cone Cutters(6) 11mm
Total Stinger Element Count1
Blade Count6
Nozzles5 Standard Series 50N, 1 Standard 10 Fixed Port
Bit Connection3 1/2 Reg
Junk Slot Area (sq in)10.849
GaugeLength: 2" Protection: Options Available
LengthMake-Up: 7 13/16 in Overall: 11 1/2 in
Fishing NeckDiameter: 4 1/2 in Length: 3"

Operating Parameters

Bit SpeedSuitable for Rotary and PDM
Weight-on-Bit2,500 To 22,000 (lbs)
1,136 To 9,999 (daN)
1 To 10 (Tonnes)
Flow Rate (GPM)200 To 500
Hydraulic Horsepower (HSI)1 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.



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

Low Exposure (MDOC – Managed Depth Of Cut) Cutter backing raised to minimize excessive depth of cut because of formation heterogeneity to reduce cutter loading and minimize torque in transitional drilling. Minimizes cutter breakage and extends bit life.

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.