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Technical Specifications


9 5/8 M85

Diameter: 244.5mm (9 5/8")  
IADC Code: 832Y  
Design number: T26У  
State standard designation: ОК-ПГВ  


Gradient angle of axle journal 36°
Axle journal offset relative to drill bit axis 0.50 mm
Bearing type Roller bearing
Sealing None
Total number of inserts (inner/heel row) 171 (116/55)
Total number of insert rows (inner/heel row) 13 (10/3)
Number of changeable nozzles 3
Connecting thread З-121 ук. (-)
Drill bit net weight, kg 50.50
Drill bit gross weight, kg 51.50

Recommended Drilling Conditions

Rotation speed 115-60 rpm
Thrust load 12.00-24.00 t (26400 - 52800 lbs)
The lower level of rotation speed value corresponds the upper level of thrust load value and vice versa.



Design Features


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