17 1/2 - 24 in SHO516(444.5 - 609.6 mm)

Product ID: 64119A0001 IADC S243

Design Specifications

Total Cutters76
Cutter Size16mm (5/8 in)
Face Cutters(55) 16mm
Gauge Cutters(11) 16mm
Blade Count5
Minimum Pilot Diameter15 7/8 in
Pilot Conditioning Diameter20"
Nozzles5 Standard Series 60N
Lower Connection7 5/8 Reg
Junk Slot Area (sq in)118.159
Upper Connection7 5/8 Reg Box
GaugeLength: 1" Protection:
LengthMake-Up: 66 13/16 in Overall: 62"
Fishing NeckDiameter: 9 1/2 in Length: 20 5/8 in

Operating Parameters

Rotary SpeedSuitable for Rotary & PDM
Weight-on-Bit8,000 To 45,000 (lbs)
3,636 To 20,452 (daN)
4 To 20 (Tonnes)
Flow Rate (GPM)700 To 1450
Hydraulic Horsepower (HSI)1 To 5
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.

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

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

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