13187L - Weiler 3-Inch Knot Wire Cup Brush .020 Steel 5/8-11 Arbor

Heavy-Duty Surface Preparation with Weiler 13187

The Weiler 13187 3-inch Knot Wire Cup Brush is a premium abrasive tool designed for the most demanding industrial MRO and fabrication environments. Engineered by Weiler Abrasives, this brush features a rugged knot-type construction that delivers high-impact cleaning action, making it essential for removing stubborn contaminants such as heavy corrosion, scale, weld slag, and paint. The brush utilizes 0.020-inch heat-treated carbon steel wire, which provides excellent fatigue resistance and cutting performance on ferrous metals.

Constructed with a solid ring design and individual knot holes, the 13187 ensures consistent wire distribution and balance. This precision manufacturing minimizes vibration during operation, protecting both the operator and the power tool from excessive wear. The 5/8"-11 UNC nut allows for direct mounting onto standard 4-1/2" and 5" right-angle grinders, ensuring a secure and safe connection. With a maximum rating of 14,000 RPM, this cup brush is optimized for high-speed material removal while maintaining structural integrity under load.

Professionals in the welding, pipeline, and structural steel industries rely on the Weiler 13187 for its durability and aggressive performance. Whether preparing surfaces for coating, cleaning casting seams, or deburring cut edges, this brush provides the reliability required for continuous industrial use. Note: This brush is designed for use on carbon steel; for stainless steel or aluminum applications, a stainless steel wire variant is recommended to prevent cross-contamination.