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Technical Specifications


5 1/8 M60

Diameter: 130.2mm (5 1/8")  
IADC Code: 612X  
Design number: T196  
State standard designation: ТЗ-ПГН  


Gradient angle of axle journal 33°
Axle journal offset relative to drill bit axis 0.00 mm
Bearing type Roller bearing
Sealing None
Total number of inserts (inner/heel row) 83 (46/37)
Total number of insert rows (inner/heel row) 10 (7/3)
Number of changeable nozzles 3
Connecting thread З-76 ук. (-)
Drill bit net weight, kg 9.50
Drill bit gross weight, kg 10.00

Recommended Drilling Conditions

Rotation speed 115-60 rpm
Thrust load 4.00-11.00 t (8800 - 24200 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

Design Features

Central and through the support purge air-water mixture.

The shirttail and leg entering edge are hardfaced with tungsten carbide


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