Weifang Far Eastern Machinery Co., Ltd. is pleased to introduce its 8.5-inch Roller Bit Core Barrel IADC 637, a reliable drilling solution designed for hard and abrasive rock formations.
The IADC 637 roller bit features tungsten carbide inserts and sealed journal bearings, providing strong wear resistance and stable performance during drilling. Its robust construction is suitable for formations with high compressive strength, including hard limestone, hard shale, granite, quartzite and other compact rock formations.
Key Features
• Product: Roller Bit Core Barrel
• Size: 8.5 inches / 215.9 mm
• IADC Code: 637
• Bit Type: TCI Roller Cone Bit
• Bearing: Sealed Journal Bearing
• Cutting Structure: Tungsten Carbide Inserts
• Application: Core barrel, HDD/trenchless drilling, foundation rock drilling and other hard-rock applications
• Formation: Medium-hard to hard and abrasive rock formations
The 8.5-inch roller cutter is also available as a single-cone/thirds roller cutter configuration for applications such as rock piling and HDD drilling. Three roller cones can be combined to form a complete 8.5-inch tricone configuration, offering flexibility for different drilling equipment and applications.
Reliable Drilling Performance
The bearing system is an important component affecting the service life of a roller bit. FAR EASTERN uses precision manufacturing and quality-controlled materials to provide reliable bearing performance and wear resistance. The IADC637 design is particularly suitable for hard-rock drilling where durability and penetration performance are critical.
FAR EASTERN supplies API & ISO certified drilling bits and roller cutters for oil & gas, water well drilling, geothermal drilling, mining, HDD, geological exploration, construction and foundation projects.
Looking for an 8.5-inch IADC637 Roller Bit Core Barrel for your next hard-rock drilling project? Contact FAR EASTERN for specifications, customization and quotation.
Post time: Aug-17-2026