Brush Research Mfg. BC1002500CD Flexible Cylinder Hone

Product Description

The BRUSH RESEARCH MFG. BC1002500CD is a flexible cylinder hone designed for precision surface finishing inside bores up to 1 inch in diameter. Built with diamond abrasive at 2,500 grit, this tool delivers an extra fine finish suited for tight-tolerance work in carbide, ceramic, and hardened tool steel. The overall length is 8 inches with a 3-inch abrasive working length, and the shank diameter measures 0.228 inches for compatibility with standard drill chucks and flexible shaft tools. It is rated for a maximum spindle speed of 1,000 RPM. Machinists, tool and die makers, and precision maintenance technicians use this hone to recondition or finish small bores without removing material aggressively.

This hone is suited for finishing small-diameter bores in hard materials where conventional abrasive stones struggle to conform to the bore surface. Typical applications include finishing carbide die bores, ceramic valve components, and hardened steel bushings or sleeves. The flexible ball-style design allows the abrasive stones to self-center and follow the bore geometry, making it practical for both through-bores and blind bores in precision machined components. It is commonly used in machine shops, toolrooms, and maintenance environments where surface finish quality directly affects part performance or sealing.

Key Features

• Diamond abrasive at 2,500 grit for extra fine surface finishing
• Maximum bore diameter of 1 inch with 3-inch abrasive contact length
• Rated to 1,000 RPM maximum for controlled, low-speed finishing passes
• Compatible with carbide, ceramic, and hardened tool steel applications
• 0.228-inch shank diameter fits standard drill chucks and flexible shaft tools
• 8-inch overall length provides reach into recessed or deep-set bore locations

Compatibility

Designed for use on carbide, ceramic, and hardened tool steel bores up to 1 inch in diameter. No specific equipment model compatibility was provided by the manufacturer for this part.

Installation Notes

This tool is installed in a standard drill chuck, handheld drill, or flexible shaft machine rated to handle the 0.228-inch shank. Always keep spindle speed at or below 1,000 RPM to avoid abrasive stone damage and maintain finish quality. Use a suitable honing fluid or lubricant recommended for diamond abrasives to extend tool life and improve surface finish. Ensure the workpiece is securely fixtured before starting the honing operation to prevent bore damage or tool deflection.