Block Cylinder Flex-Hone 3-3/4 Inch 240 Grit - Brush Research

The Brush Research GB3-3/4240 Block Cylinder Flex-Hone is a professional-grade flexible honing tool designed for critical surface finishing in automotive and industrial applications. This 3-3/4 inch diameter tool, equipped with a 240 grit silicon carbide abrasive, is engineered to create a superior plateau finish that promotes optimal oil retention and extends the lifespan of components in cylinder bores and other internal surfaces. Its unique construction ensures consistent performance and ease of use for professional technicians and mechanics.

Key Features

• Self-Centering and Self-Aligning: The abrasive globules feature independent suspension, allowing the Flex-Hone® to automatically center and align itself to the bore, simplifying operation and ensuring uniform contact and finish.
• Consistent, Controlled Abrasion: With hundreds of cutting points, this tool provides a soft, low-pressure cutting action that effectively removes torn and folded metal without removing significant base material or gouging cylinder walls.
• Optimal Plateau Finish: It creates a precise crosshatch pattern and a true plateau finish, which reduces friction, enhances oil retention, and promotes rapid piston ring seating for improved engine performance and longevity.
• Durable Silicon Carbide Abrasive: Constructed with robust silicon carbide abrasive, this hone is highly effective for finishing various base materials, ensuring longevity and consistent results.
• Reduced Setup Complexity: The tool does not require elaborate setups or specialized training, making it highly efficient for both seasoned professionals and those integrating honing into their workflow.

Applications

This flexible cylinder hone is suitable for a range of professional applications, including:

• Cylinder Bore Reconditioning: Effectively deglazes and reconditions engine cylinder walls, preparing them for new piston rings and enhancing engine rebuilds.
• Surface Finishing: Achieves an optimal surface finish on internal bores, which is vital for hydraulic and pneumatic components where tight tolerances and sealing are critical.
• Deburring and Edge Blending: Efficiently removes burrs and other surface imperfections, particularly useful for cross-drilled holes, thereby reducing the risk of damage from loose metal fragments.
• Pre-assembly Preparation: Ensures internal surfaces are clean and properly finished before reassembly, contributing to reliable operation and extended part life in automotive and industrial machinery.

Specifications

• Overall Length: 13-1/2"
• Diameter: 3-3/4"
• Grit: 240
• Weight: 1 lb