Tru-maxx 88549 Knotted Wire Wheel Brush 4 Inches

Product Description

The TRU-MAXX 88549 is a knotted wire wheel brush designed for aggressive surface preparation, weld cleaning, rust removal, and scale stripping on metal workpieces. Mounted via a 5/8-11 arbor hole, this brush attaches directly to angle grinders and bench grinders commonly used by fabricators, pipefitters, and industrial maintenance technicians. The 4-inch outside diameter and cable twist wire knot configuration deliver concentrated abrasive action across a 1/4-inch face width. Carbon steel fill material with a filament wire diameter in the 0.020 to 0.029 inch range provides durability on ferrous metals. Rated to 20,000 RPM, the brush handles high-speed tool operation without deformation under load.

This wheel brush is suited for light to medium industrial applications including pre-weld joint cleaning, post-weld spatter removal, surface descaling, and paint or coating removal on structural steel, pipe, and fabricated components. It is a standard replacement-style brush for use wherever a 4-inch knotted wire wheel with a 5/8-11 arbor mount is called for. The 7/8-inch trim length gives the wire sufficient flex to conform to irregular or contoured surfaces during use.

Key Features

• Knotted cable twist wire configuration for aggressive cutting action on hard surfaces
• Carbon steel fill material rated for ferrous metal surface prep and weld cleaning
• 5/8-11 arbor hole mount for direct attachment to standard angle and bench grinders
• 20,000 RPM maximum rated speed for compatibility with high-speed power tools
• 1/4-inch face width concentrates abrasive force along a narrow contact path
• 7/8-inch trim length provides wire flex for contoured and flat surface work

Compatibility

Designed as a standard replacement knotted wire wheel brush for angle grinders and bench grinders accepting a 5/8-11 arbor hole mount with a 4-inch outside diameter wheel.

Installation Notes

Installation is performed by qualified tradespeople familiar with abrasive wheel safety per ANSI B11 and tool manufacturer guidelines. Always power down and disconnect the grinder before mounting or removing the brush. Verify the tool RPM rating meets or exceeds the 20,000 RPM rating of the brush before use. Wear appropriate PPE including eye and face protection when operating wire wheel brushes at speed.