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API Tricone drill bits IADC111 15.5 inches( 394mm) in stock

Product Description

Wholesale API steel tooth sealed tricone rock drill bits in the stock based on the lowest price and excellent quality from China manufacturer
Bit Description:
IADC: 111 - Steel tooth standard open bearing bit for soft formations with low compressive strength and high drillability.
Compressive Strength:
0 - 35 MPA
0 - 5,000 PSI
Ground Description:
Very soft, unstratified, poorly compacted rocks such as poorly compacted clays and sandstones, marl limestones, salts, gypsum, and hard coals.
We can offer mill tooth and TCI tricone drill bits in a variety of sizes (from 3 7/8” to 26”) and most of IADC Codes.

According to cutting material, tirocne bit can be divided into TCI bit and Steel Tooth Bit .
Steel tooth tricone bits have another name milled tooth tricone bit since the teeth are produced by milling machine, the cone surface is hard-faced by tungsten carbide.
Steel tooth drills are suitable for extremely soft formations with low compressive strength and high drillability such as clay, mudstone, chalk, etc. They are also suitable for medium strata with high compressive strength, such as soft shale, anhydrite, medium soft limestone, medium soft sandstone. Medium stratum with a hard interlayer.

Product Specification

Basical Specification

Size of Rock Bit

15 1/2 inches


Bit Type

Steel Tooth Tricone Bit/ Milled tooth Tricone Bit

Thread Connection



IADC 111

Bearing Type

Open bearing roller bits

Bearing Seal

Rubber Seal

Heel Protection


Shirttail Protection


Circulation Type

Mud Circulation

Drilling Condition

Rotary drilling, high temp drilling, deep drilling, motor drilling


Central Jet Hole

Operating Parameters

WOB (Weight On Bit)

26,539-66,348 lbs





Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc.

Far Eastern are factory specializes in drill bits,such as tricone bits, PDC bits, HDD hole opener, Foundation roller cutters for different applications.
As a leading drill bits factory in China, increase the drill bit working life is our target. We always try to improve the bits with high penetration rates.Our purpose is to sell the high quality with the lowest price. Far eastern drilling quality and technology will help you to achieve more !