12 in MZ716(304.8 mm)

Product ID: 66217A0001 ER 26482

Design Specifications

Total Cutters63
Cutter Size16mm (5/8 in)
Face Cutters(41) 16mm
Gauge Cutters(12) 16mm
Cone Cutters(10) 16mm
Blade Count7
Nozzles10 Standard Series 60N
Bit Connection6 5/8 Reg
Junk Slot Area, in228.652
GaugeLength: 3" Protection: Options Available
LengthMake-Up: 11.724 Overall: 16.662
Fishing NeckDiameter: 8 Length: 3.603

Operating Parameters

Bit SpeedSuitable for Rotary & PDM
Weight-on-Bit6,000 To 45,000 (lbs)
2,727 To 20,452 (daN)
3 To 20 (Tonnes)
Flow Rate galUs/min500 To 1100
Hydraulic Horsepower, HSI1 To 6
Recommended Make-up Torque47,300 To 47,800 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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12 in MZ716(304.8 mm)



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.

Optional anti-balling metallic coating electrochemically applied to the surface of the bit body which reduces the surface roughness and friction. This greatly helps to prevent cuttings from sticking and reduces the likelihood of bit balling.