16 - 28 in SHOSi616(406.4 - 711.2 mm)

Product ID: 67081A0001 ER 27120

Design Specifications

Total Cutters162
Cutter Size16mm (5/8 in)
Face Cutters(95) 16mm
Gauge Cutters(13) 16mm
Blade Count6
Minimum Pilot Diameter15 7/8 in
Pilot Conditioning Diameter20"
Pilot Bit Diameter Range15.875” To 19.875”
Nozzles12 Standard Series 60N
Lower Connection7 5/8 Reg
Junk Slot Area (sq in)81.08
Upper Connection7 5/8 Reg Box
GaugeLength: 5" Protection: Options Available
LengthMake-Up: 64 13/16 in Overall: 70"
Fishing NeckDiameter: 9 1/2 in Length: 22 1/16 in

Operating Parameters

Rotary Speed50 To 120 RPM
Weight-on-Bit5,000 To 30,000 (lbs)
2,272 To 13,635 (daN)
2 To 14 (Tonnes)
Flow Rate (GPM)700 To 1450
Hydraulic Horsepower (HSI)1 To 6
The operating parameters listed here are general parameters, please contact your local Smith Bits representative for precise recommendations for your individual well.



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.

Increased cleaning, cooling, and cuttings evacuation with available hydraulic flows; high flow rates with minimal increase in pump pressure, and reduced risk a bit balling.

Backreaming cutters are strategically positioned to improve hole quality & ensure trouble free tripping

Diamond enhanced inserts maintain hole integrity and the short gauge length optimizes directional control.

Large junk slot area maximizes the efficiency of cuttings removal for optimum hole cleaning.