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Product Summary

The Klutch 4in. Twisted Knot Medium Cup Brush has medium (0.020in.) wire and a 5/8in.-11 arbor. Extended-life ring. For use with angle grinders. 8,500 max. RPM

What's Included

    (1) Cup brush

Features + Benefits

  • Twisted Knot Wire Construction for Maximum Cutting Power Delivers aggressive, high-impact brushing action that quickly removes heavy rust, weld slag, paint, and corrosion from steel surfaces.
  • Medium-Duty 0.020in. Carbon Steel Wire Balanced wire thickness provides strong material removal while still offering better control than extra-coarse industrial wheels—ideal for general fabrication and shop cleanup work.
  • 4in. Cup Brush Design for Broad, Even Coverage Maintains consistent surface contact across flat and curved metal, helping you clean larger areas efficiently without sacrificing control.
  • Ideal for Weld Cleanup & Surface Prep Perfect for stripping oxidation, cleaning weld beads, removing scale, and preparing metal for painting, coating, or finishing.
  • Compact Profile for Controlled Grinding Smaller diameter improves maneuverability in tight areas, edges, and detailed metalwork where precision matters.
  • Heavy-Duty Twisted Knot Build for Durability Wire bundles resist breakage and wear under high-speed grinding, extending tool life during demanding industrial use.
  • 5/8in-11 Threaded Hub for Secure Fitment Installs quickly on most standard angle grinders for stable, vibration-resistant operation during aggressive cleaning tasks.
  • High-Speed Rated Performance, up to 8,500 RPM Engineered to handle consistent high-speed use, delivering reliable cutting performance in fabrication and maintenance environments.
  • Versatile Shop & Field Use A dependable choice for welders, fabricators, mechanics, and maintenance crews working on structural steel, equipment repair, and restoration projects.

Key Specs

AttributeSpecification

item#

42218

Brand

Klutch

Ship Weight

2.24 LB

Wheel Diameter

4 in

Arbor Size

5/8
AttributeSpecification

Wheels (qty.)

1

Grit

Medium

Max. RPM

8,500

Thread Size

11 TPI

Bristle Type

Knotted