Brush Research Mfg. BC45M180AO Flexible Cylinder Hone 180 Grit

Product Description

The BRUSH RESEARCH MFG. BC45M180AO is a flexible cylinder hone designed for deburring, surface finishing, and controlled material removal in small-bore applications. It uses 180-grit aluminum oxide abrasive, placing it in the medium grade range suitable for stock removal with a reasonably smooth finish. The hone has a maximum bore diameter of 0.177 inches (4.5 mm) and an overall length of 6 inches, making it well-suited for tight, precision bores in small components. A shank diameter of 0.055 inches allows it to chuck into standard rotary tools and drill presses. Licensed machinists, toolroom technicians, and precision mechanics are the primary users of this tool.

This hone is intended for use on aluminum, brass, bronze, and other softer metals. It fits into small-bore finishing tasks found in precision machining, engine component work, hydraulic valve bodies, and similar applications where bore geometry and surface finish must be maintained without aggressive material removal. The 0.75-inch abrasive length concentrates cutting action efficiently within the bore. It is suitable for both production and maintenance environments where small-bore finishing is required on non-ferrous components.

Key Features

• 180-grit aluminum oxide abrasive for medium-grade cutting action on softer metals
• Maximum bore diameter of 0.177 inches (4.5 mm) for precise small-bore applications
• 6-inch overall length provides reach and control during operation
• 0.055-inch shank diameter compatible with standard rotary tool chucks and drill presses
• 0.75-inch abrasive length concentrates finishing action within the bore
• Rated for a maximum of 1200 RPM to maintain abrasive integrity and workpiece safety

Compatibility

Designed for use on aluminum, brass, bronze, and softer metal workpieces requiring small-bore surface finishing with a maximum bore diameter of 0.177 inches (4.5 mm).

Installation Notes

This tool is installed into a standard rotary tool, hand drill, or drill press by seating the 0.055-inch shank securely in the chuck before operation. Do not exceed the rated maximum speed of 1200 RPM, as overspeed can damage the abrasive assembly and create a hazard. Use light, consistent pressure and keep the tool moving axially through the bore to avoid uneven wear or bore taper. Eye protection and appropriate work-holding are required during operation.