9 pack nylon filament abrasive wire brush set - Includes three brush shapes (pen brush, flat brush, bowl brush) with three grits each, for a total of 9 brushes - Grit colors and sizes: gray 80#, red 100#, blue 240# - 1/4 Inch hex shank for easy attachment to most rotary tools and grinders - Maximum speed: 4500 RPM - Sizes: bowl brush and flat brush 3 inches in length; pen brush 1 inch Durable and efficient - Abrasive grit is embedded into nylon brush strands for quick rust and corrosion removal - Also capable of sanding, scuffing, and deburring on metal, wood, plastic, and ceramic surfaces Wide material compatibility - All-Material-In-1 design suitable for safe, light rust removal and paint cleaning on both wet and dry applications - Works across metals (metal, steel, stainless steel, aluminum), wood, plastic, PVC, tiles, stones, and more Use scenarios - Restore rusted outdoor tools, bike parts, and equipment by removing rust and preparing for coating - Deburr and clean welds or edges on metal projects to prep for finishing or painting - Clean and refresh wood, plastic, ceramic, or tile surfaces by removing coatings or light oxidation Notes - Compatible with standard rotary tools due to 1/4" hex shank - Each brush is designed to deliver controlled abrasion without excessive material removal when used as directed