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Quick Details

Use: Well Drilling
Material: Tungsten Carbide
Type: Center Drill Bit
Model Number: 9 7/8" IADC625
Brand Name: WM
Place of Origin: China (Mainland)

Specifications

9 7/8" IADC625  open non sealed roller bearing with air cooling and circulation suitable for mining


Cutting structure
Conical on gage,conical on inner rows.designed for medium-hard and abrasive formations with high compressive strengths such as limestone,sandstone,dolomite and chert


Shirttail protection
hardmetal and wear resistant carbide on shirttail lip and lug


Product specification
IADC code:625
Bearing type:roller-ball-roller-Thrust
Button/Sealed bearing
Circulation Type:Jet Air
Cutting Structure:
-Inner and Nose Rows:Conical
-Gage Rows:Conical
-Gage Bevel Protection:Flat-top
Pin Connection: 6 5/8" API
Metric Bit Diameter:251mm
Product Weight:65Kg


Operating Suggestions
Weight on Bit:29,630-59,250lbs
Rotary Speed: 100-60RPM
Air Back Pressure:0.2-0.4Mpa