PFERD 82523 4" Knot Cup Wire Brush Carbon Steel 5/8"-11 Thread

The PFERD 82523 is a heavy-duty single row power knot cup wire brush designed for aggressive surface preparation and cleaning on angle grinders. This 4-inch diameter brush features carbon steel bristles with 0.023" wire size in a standard twist configuration, providing excellent material removal rates for rust, scale, weld slag, and heavy coatings.

Key Features:

• Single row knot construction for aggressive brushing action and longer service life
• Carbon steel bristles ideal for ferrous metals and general-purpose applications
• External nut design with 5/8"-11 threaded arbor fits most angle grinders
• 0.023" wire diameter balances aggressive cutting with flexibility
• Maximum operating speed of 9,000 RPM for efficient material removal
• 4-inch diameter provides excellent coverage for large surface areas

PFERD knot wire cup brushes are manufactured to strict quality standards for consistent performance and safety. The single row design concentrates the brushing force for maximum impact, making this brush ideal for heavy-duty deburring, edge blending, weld cleaning, and surface preparation tasks in metal fabrication, maintenance, and construction applications.