Brake Cylinder Flex-Hone 4-1/4" 320 Grit Heavy-Duty Tool - Brush Research

The Brush Research GBD41432 Flex-Hone is a heavy-duty, professional-grade honing tool engineered for precision surface finishing in demanding automotive and industrial applications. Designed for 4-1/4" (108mm) bore diameters, this 320 grit silicon carbide tool efficiently deburrs, deflates, and creates a controlled plateau finish essential for optimal component performance and longevity.

Key Features

• Heavy-Duty Construction: Features a twisted-in-wire design built for durability and consistent performance in high-volume and large-diameter honing applications.
• Optimal Bore Sizing: Precision-engineered for 4-1/4" (108mm) bore diameters, ensuring full contact and effective honing within critical components.
• 320 Grit Silicon Carbide: Provides an ideal abrasive for achieving a refined surface finish, which improves sealing capabilities and extends component life.
• Versatile GBD Series Compatibility: This tool is part of the GBD series, accommodating a wide range of bore diameters from 3" through 8", making it a flexible addition to a professional toolkit.
• Professional Plateau Finish: Creates a consistent, uniform plateau finish crucial for optimal piston ring seating, superior seal performance, and efficient fluid retention.

Applications

This heavy-duty Flex-Hone is an essential tool for technicians and machinists working on systems where a superior bore finish is critical. Common applications include:

• Automotive Brake Cylinders: Restoring hydraulic brake cylinders to OEM specifications for reliable braking performance.
• Engine Block Cylinders and Liners: Preparing engine bores for piston rings, enhancing oil retention and reducing blow-by.
• Stationary Diesel Engines: Maintaining and rebuilding large diesel engine components.
• Oil and Gas Pipes: Ensuring smooth internal surfaces for efficient flow and reduced wear.
• Marine Engines: Honing critical bores in demanding marine environments.

Specifications

• Manufacturer: Brush Research
• Model Number: GBD41432
• Product Name: Brake Cylinder Flex-Hone
• Nominal Diameter: 4-1/4" (108mm)
• Abrasive Grit: 320SC (Silicon Carbide)
• Overall Length (OAL): 13-1/2" (for 3" to 4-1/2" diameter tools in the GBD series)
• Construction: Twisted-in-wire, heavy-duty
• Series Compatibility: GBD Series (suitable for bore diameters 3" - 8")