6 1/8 in MDSiR713(155.575 mm)

Product ID: 66481A0001 ER 26701

Design Specifications

Total Cutters46
Rolling Cutter Countn/a
Cutter Size13mm (1/2 in)
Face Cutters(22) 13mm
Gauge Cutters(7) 13mm
Cone Cutters(7) 13mm
Back-Up Cutters(10) 13mm
Blade Count7
Nozzles3 Standard Series 50N, 2 Standard Series 40N
Bit Connection3 1/2 Reg
Junk Slot Area, in24.35
GaugeLength: 2" Protection: Options Available
LengthMake-Up: 8.088 Overall: 11.775
Fishing NeckDiameter: 4.75 Length: 3.087

Operating Parameters

Bit SpeedSuitable for Rotary & PDM
Weight-on-Bit2,500 To 22,000 (lbs)
1,136 To 9,999 (daN)
1 To 10 (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.



The ONYX 360 rolling cutter feature allows the PDC element to rotate enabling the full circumference of the diamond edge to be utilized. This prevents a wear flat developing in only one place thereby maintaining cutter sharpness for improved drillbit durability.

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 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.