The Brush Research BRM-BC9M18 Flex-Hone is a flexible, ball-style cylinder honing tool designed for 9mm (.354") bore diameter applications. Built with 180-grit silicon carbide abrasive globules, it delivers controlled surface finishing, deburring, and edge blending in tight bores where rigid tooling cannot reach.
Ideal for use in hydraulic cylinders, pneumatic components, small engine bores, and precision machined parts, this Flex-Hone conforms to bore irregularities to produce a smooth, uniform surface finish. Compatible with standard hand drills and machine tools for versatile shop and field use.