The Forney 72737 1 Inch crimped wire end brush is a stem mounted wire wheel brush with hex shank. Crimped circular flared end brush. Designed for easy access into narrow holes and confined areas. Crimped style for light to medium duty applications. Removes rust, scale and paint in hard to reach areas. Use with any electric power drills. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm & ranch and do-it-yourself markets. If you've got metal working questions, we've got answers. We're committed to your success regardless of location size or needs. 1 inch (25.4mm) x .012 inch (.305mm) coarse wire wheel with 1/4 inch (6.35mm) hex shank. Max 6,000 RPM. Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required. This warranty does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.