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9 7/8" SGA635RF

9 7/8" SGA635RF is part of mining tri-cone drill bit, which is mainly used in large open-pit mining operations, such as open-pit coal mine, copper mine, molybdenum mine, iron ore mine and other non-ferrous metal mine.

PRODUCT SPECIFICATION

CUTTING STRUCTURE
Conical on gage, double spherical and conical on inner rows, with auxiliary carbide protection.
Designed for high compressive strength, medium hard and abrasive formations, such as limestone, sandstone, interbedded dolomite.
Compressive strength: 29,000-38,000 psi/200-262 MPa
SHIRTTAIL PROTECTION
Hard metal and wear resistant carbide on shirttail lip and lug.
PRODUCT SPECIFICATION
IADC Code: 635
Bearing Type: Roller-Ball-Roller-Thrust Button/Sealed Bearing
Circulation Type: Jet Air
Cutting Structure:
Inner and Nose Rows: Double spherical and conical
Gage Rows: Conical
Auxiliary Carbide: Spherical
Gage Bevel Protection: Ovoid
Pin Connection: 6 5/8″ API REG
Metric Bit Diameter: 251 mm
Product Weight: 143 lbs/ 65 kg
OPERATING SUGGESTIONS 
Weight on Bit: 20.0T / 44,093 lbs MAX
Rotational Speed: 60-100 rpm
Air Back Pressure: 29-58 psi/0.2-0.4 MPaIADC Code:  635

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