1-pc Square-trimmed crimped wire brushes used in drill presses and portable tools for cleaning internal HARD TO GET surfaces. In a single operation, they brush both the bottom and sides of a hole. Applications: For Removing Fine Burrs from the Edges of Cross-Drilled Holes, Spot Facing1-1/2" square trim brush.006 wire1/4" steam or shank4,500 RPM Normal 0 false false false EN-US X-NONE X-NONE