This nylon filament cup brush is made of special nylon filaments infused with silicon carbide. This nylon brush lasts up to six times longer than conventional wire brushes. A well prepared surface is the key to achieving a long lasting and durable coating with your Al's Liner Truck Bed Lining. To help you get a perfect preparation done easily every time, Al's developed the Al's Liner Cup Brush, a professional series abrasive nylon bristle cup brush. Its tough nylon bristles do a fantastic job sanding, scuffing and blending surfaces. The Al's Liner Cup Brush attaches to a pneumatic rotary tool and will speed up the sanding time on your next project while ensuring that your surface is properly prepared. This Cup Brush will quickly scuff up the surface area to be sprayed and is strong enough to last for several Al's Liner projects. Nylon filament cup brush uses include frame and body cleaning, polishing, surface deburring, scrubbing and brightening, surface refinishing and decorative finishing. Safe for use on metal, wood, aluminum and plastic surfaces. An excellent prep tool for Al's DIY Bed Liner. Fits standard 5/8 inch arbor.