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Technical Specifications


10 3/16 M65

Diameter: 258.0mm (10 3/16")  
IADC Code: 632Y  
Design number: T217  
State standard designation: ТКЗ-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) 150 (97/53)
Total number of insert rows (inner/heel row) 12 (9/3)
Number of changeable nozzles 3
Connecting thread З-121 ук. (-)
Drill bit net weight, kg 52.50
Drill bit gross weight, kg 54.90

Recommended Drilling Conditions

Rotation speed 115-60 rpm
Thrust load 8.00-21.00 t (17600 - 46200 lbs)
The lower level of rotation speed value corresponds the upper level of thrust load value and vice versa.


The drill bit is designed for drilling hard abrasive formations with hard streaks

Design Features


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