The Brush Research GB41824 4 1/8" 240 Grit Flex-Hone is a professional-grade tool engineered for superior bore finishing, deglazing, and deburring in automotive, hydraulic, pneumatic, and various industrial applications. This innovative honing tool utilizes a unique flexible design to conform precisely to the internal surface of cylinders, ensuring consistent material removal and the creation of an optimal plateau finish essential for improved component performance and longevity.
Key Features
- Self-Centering and Self-Aligning Design: Each abrasive globule has independent suspension, allowing the Flex-Hone to be self-centering, self-aligning to the bore, and self-compensating for wear, simplifying operation and reducing the need for elaborate setups.
- Optimal Plateau Finish: Creates a true plateau finish by removing cut, torn, and folded metal peaks, leaving behind a cross-hatch pattern that enhances oil retention, promotes rapid ring seating, and extends seal life.
- 240 Grit Silicon Carbide Abrasive: Composed of durable silicon carbide globules, this 240 grit abrasive is ideal for mild steel, stainless steel, and cast iron, efficiently refining bore surfaces and removing minor imperfections.
- Effective Deburring: Excellently removes burrs from cross-drilled holes and slots, as well as blending edges, significantly reducing the risk of damage from loose metal fragments and improving overall part performance.
- Professional-Grade Construction: Features high-density nylon filaments laminated with abrasive globules and a robust twisted wire stem, ensuring durability and consistent results in demanding environments.
- Versatile Operation: Designed for use in any rotating spindle, from standard hand drills to drill presses and CNC equipment, providing flexibility for various shop settings.
Applications
The Brush Research 4 1/8" 240 Grit Flex-Hone is indispensable for professional technicians and mechanics across a wide range of tasks:
- Automotive Engine Rebuilding: Deglazing and finishing cylinder walls to prepare for proper piston ring seating and improved oil control, suitable for various engine types including popular Chevy small blocks and other bores from 3.750" to 4.125".
- Hydraulic and Pneumatic Systems: Improving internal surface finishes of hydraulic cylinders, ram cylinders, valve bodies, and pneumatic cylinders to reduce seepage and extend seal life.
- Brake System Maintenance: Honing brake cylinders and even improving the surface finish of brake rotors to ensure instant brake pad seating and eliminate noise.
- Industrial Component Finishing: Deburring and surface finishing a variety of industrial bores and cross-drilled holes, enhancing part quality and longevity.
Specifications
- Manufacturer: Brush Research
- Model Number: GB41824
- Nominal Diameter: 4 1/8" (designed for bore diameters between 3.751" and 4.125")
- Abrasive Type: Silicon Carbide
- Grit Size: 240
- Overall Length: 13.5" (343mm)
- Abrasive Globule Length: 4.00"
- Surface Finish (Ra Range): 24 - 32 Microinch (0.6 - 0.8 Micrometer)
- Recommended Spindle Speed: 600 - 900 RPM for this diameter.
- Recommended Feed Rate: 120 - 180 inches per minute (ipm).
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