Workmax 4 in. Extra Coarse Knot Wire Cup Brush

The WORKMAX 4 in. Knot Wire Cup Brush is engineered for heavy-duty surface cleaning, rust removal, and weld preparation on metal surfaces. Featuring an extra coarse knot wire design, this brush delivers aggressive cleaning power to efficiently strip rust, scale, weld spatter, and old paint. With a reinforced backing plate and a standard 5/8 in.-11 arbor, it securely attaches to most angle grinders and is rated for speeds up to 8,500 RPM. Built to withstand tough workshop and job site conditions, this brush is an essential accessory for metal fabrication, automotive repair, and industrial maintenance.

• Extra Coarse Knot Wire Construction: Provides maximum abrasion for heavy rust, scale, weld spatter, and paint removal.
• 4 in. Diameter: Ideal for cleaning larger surface areas while maintaining control and access.
• 5/8 in.-11 Arbor: Standard thread size compatible with most angle grinders for secure and easy installation.
• High-Speed Rated: Maximum operating speed of 8,500 RPM ensures effective performance with compatible grinders.
• Durable & Long-Lasting: Reinforced backing plate and heavy-gauge knotted wire offer extended service life.
• Ideal for Metal Preparation: Perfect for weld cleaning, surface finishing, automotive restoration, and industrial surface prep.
• Weight: Approximately: 1.03 pounds
• Shipping Dimensions: Approximately: 5.12 x 7.09 inches.