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

Grand, a renowned manufacturer and supplier in China, offers high-quality roller bits for efficient drilling operations. Explore our comprehensive range of roller bits designed to meet diverse drilling requirements. Trust us as your reliable source for roller bit drilling solutions in the industry.


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

In the dynamic field of drilling, having reliable and effective drilling tools is crucial for achieving optimal results. Companies worldwide are constantly seeking innovative solutions to enhance their drilling operations and maximize productivity. Grand, a trusted manufacturer and supplier based in China, presents its high-quality roller bits. With a comprehensive range of roller bit drilling solutions, we are the go-to brand for drilling professionals.

Understanding Grand Roller Bit Drilling:

Grand's roller bits are meticulously engineered to deliver exceptional performance in various drilling applications. Our roller bits feature a durable construction with strategically placed cutting elements, designed to efficiently penetrate and break through different formations encountered during drilling operations. With a focus on precision and reliability, our roller bits are tailored to meet the specific needs of the industry.

Benefits of Grand Roller Bit Drilling Solutions:

Efficient Drilling Performance: Grand's roller bits offer efficient drilling performance, thanks to their robust construction and strategically placed cutting elements. The precise design and quality craftsmanship ensure smooth and effective drilling operations, optimizing productivity and reducing downtime.

Versatility: Our roller bits are designed to cater to a wide range of drilling applications. Whether you require drilling in soft or hard rock formations, our roller bit solutions offer versatility and adaptability to meet diverse drilling challenges.

Enhanced Durability: Grand's roller bits are built to withstand the demanding conditions of drilling operations. With premium materials and meticulous manufacturing processes, our roller bits exhibit exceptional durability, ensuring longevity and reducing the frequency of bit replacements.

Customization Options: We understand that each drilling project has unique requirements. Grand offers customization options for roller bits, allowing us to tailor the design and specifications to match your specific drilling needs. Our experienced team can work with you to develop customized solutions that enhance drilling efficiency and performance.

Grand: Your Trusted Manufacturer and Supplier in China:

As a reputable manufacturer and supplier based in China, Grand is committed to delivering high-quality roller bit drilling solutions that meet industry standards. We strive for excellence in every aspect of our operations, from design and manufacturing to customer service.

Manufacturing Excellence: Grand utilizes advanced manufacturing techniques and state-of-the-art technology to produce roller bits of the highest quality. Our strict quality control measures ensure that each product meets stringent industry standards and exceeds customer expectations.

Extensive Product Range: We offer a comprehensive range of roller bits to suit various drilling applications. Whether you require bits for oil and gas exploration, mining operations, or geothermal drilling, we have the right solution to meet your specific needs.

Reliable Supplier: Grand is a trusted supplier of roller bits in the industry, with a reputation for delivering products on time and providing exceptional customer service. We understand the importance of reliability and strive to be a trusted partner for all your drilling tool requirements.

Grand's roller bit drilling solutions provide efficient and reliable performance for a wide range of drilling applications. As a trusted manufacturer and supplier based in China, we are dedicated to delivering high-quality roller bits that meet industry standards. Trust Grand as your reliable source for roller bit drilling solutions and experience enhanced drilling efficiency. Contact us today to discuss your specific requirements and benefit from our reliable solutions and exceptional customer service.


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

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