Tricone Drilling Bit
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  • 8 1/2 Inch Single Roller Cone Bit

  • 8 1/2 Inch Single Roller Cone Bit

8 1/2 Inch Single Roller Cone Bit

Replaceable single roller cone; Rock drill bit for foundation engineering


The Tricone rock bit is a type of rotary drill bit that is widely used in the oil and gas industry, as well as in mining, construction, and geothermal drilling. It is known for its high drilling efficiency and reliability, making it a popular choice for many drilling projects.

The Tricone rock bit gets its name from its three cone-shaped heads that are attached to the bit's body. Each cone is covered with hardened steel teeth or tungsten carbide inserts that rotate as the bit drills into the ground. The teeth or inserts are designed to break up the rock or other material being drilled, and the cones help to maintain the bit's stability and prevent it from getting stuck in the ground.

Tricone rock bits are available in a variety of sizes and styles, depending on the specific drilling project and the type of rock or other material being drilled. They can be designed for use in both soft and hard formations, and some models are equipped with specialized features, such as diamond-enhanced inserts, to improve drilling efficiency and reduce wear and tear on the bit.

The Tricone rock bit is a reliable and effective drilling tool that has been used in the industry for many decades. Its unique design and features make it a popular choice for drilling professionals around the world.

Product Descriptiopn

1) Cutting Structure

The reamer mainly consists of four or more cones. Cutting Structure with premium tungsten carbide hardfacing or premium tungsten carbide insert of formulas and new techniques is utilized, and increases wear-resistance capability of reamer. The pilot is three cone bit( tricone bit ).

2) Seal and Lubrication

High performance O-ring for bearing seal and advanced grease for lubrication.

3) Product Application

It is suitable for the large size well, mining and infrastructure applications.

4) Main Availability, ( Bit sizes and cone types can be customized as you special order)


8 1/2 inch single roller bit

Machine Type

piling tool





Processing Type



piling engineering

Other name

Roller cutter/Roller cone

Bearing type

Elastomer Sealed Bearing


Trenchless & HDD & Foundation


High Performance Cost Ratio

Product Keywords

roller cones cutter bit


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Tianjin Grand Construction Machinery Technology Co., Ltd. deeply engaged in rock breaking tools more...

Tianjin Grand Construction Machinery  Technology Co., Ltd.
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