Tricone Tungsten Carbide Inserts (TCI) Bits

Drills bits of premium class used for drilling boreholes of large diameter or any complicated boreholes. The design of drill bits is adapted to the real drilling project taking into account the borehole path, bottom hole assembly and the drilling technology. This high quality product can be used for any structure using top drive or down-holes motors.

Check available  shirttail and leg protection, bearing, color and  additional information before sending us your demand.




First Digit:

4, 5, 6, 7 and 8 for TCI bits type with 4 being the softest and 8 the hardest.

Second Digit:

1, 2, 3 and 4 are further breakdown of formation with 1 being the softest and 4 the hardest.

Third Digit:

This digit will classify the bit according to bearing/seal type :

1 and 3 for open bearing

4, 5 , 6 and 7 for sealed bearing

Fourth Digit:

The following letter codes are used in the fourth digit position to indicate additional features:

A. Air Application
R. Reinforced Welds
C. Center Jet
S. Standard Steel Tooth
D. Deviation Control
X. Chisel Insert
E. Extended Jet
Y. Conical Insert
G. Extra Gage Protection
Z. Other Insert Shape
J. Jet Deflection

Additional information


Green, Yellow, Red, Blue, Purple, Personalized


74.6 mm to 508.0 mm


200 rpm, 300 rpm, 350 rpm, 600 rpm


Open, Sealed Roller, Sealed Journal

Cutting structure

Steel teeth, Steel teeth with thick hardfacing, Steel teeth with enhanced thick hardfacing

Shirttail ang leg protection

Hardfaced with hard grain alloy, Tungsten carbide inserts

Circulation system

Side jet, Center jet, Combined jet, Reverse