Outside disk brushes are single coils that may be used individually or ganged in multiples. Outside disk brushes are single coils that may be used individually or ganged in multiples. Applications include product separating, product guiding, cleaning, and polishing. Brush Firm can design and manufacturing any custom outside disk brush to meet our customers application. Fill Materials: Nylon, Polypropylene, Tampico, Horsehair, Polyester, Abrasive Nylon, Stainless Steel, Crimped Carbon Steel, Brass, Other materials available upon request