Value Collection S04185666 Cup Brush 3in Knotted Steel

Product Description

The VALUE COLLECTION S04185666 is a knotted steel cup brush designed for aggressive surface preparation on metal, welds, and masonry. The 3-inch brush diameter and 0.0137-inch wire diameter deliver the wire tension and contact area needed for rust removal, paint stripping, scale removal, and weld cleanup. The 5/8-11 threaded arbor mounts directly to standard angle grinders. A maximum operating speed of 11,000 RPM makes this brush compatible with most 4-inch and 4.5-inch grinders used by fabricators, pipefitters, ironworkers, and maintenance trades.

This cup brush suits industrial and commercial applications where knotted wire construction is required for heavier stock removal. Typical uses include cleaning weld beads prior to inspection, removing mill scale from structural steel, stripping coatings from pipe flanges, and surface profiling before painting or coating. The single-row knotted configuration concentrates wire pressure for faster material removal compared to crimped fill styles. Fine grade wire provides a balance of aggression and wire longevity in sustained grinding tasks.

Key Features

• Knotted steel fill for aggressive surface preparation and scale removal
• 3-inch brush diameter provides broad contact on flat and curved surfaces
• 5/8-11 threaded arbor fits standard angle grinder spindles
• 11,000 RPM maximum operating speed rated for typical 4-inch and 4.5-inch grinders
• Single-row construction concentrates wire pressure for efficient stock removal
• Fine grade wire balances cut rate with wire service life

Compatibility

Designed for use with angle grinders equipped with a 5/8-11 threaded spindle. Always confirm the grinder free-speed RPM does not exceed 11,000 RPM before mounting.

Installation Notes

Installation and use should follow ANSI B165.1 safety standards for power wire brushes. Disconnect the grinder from its power source before mounting or removing the brush. Thread the 5/8-11 arbor onto the grinder spindle by hand until seated, then snug per the tool manufacturer specification — do not overtighten. Always use the grinder guard, wear a full face shield rated for wire brush use, and ensure bystanders are clear of the wire ejection zone during operation.