Tru-maxx 88529 End Brush 3/4 in Knotted Stainless Steel Wire

Product Description

The TRU-MAXX 88529 is a knotted wire end brush designed for aggressive surface preparation, deburring, and cleaning on metal workpieces. The brush features stainless steel fill wire with a filament diameter of 0.0201 inches and above, providing the durability needed for heavy-duty applications. It operates at a maximum speed of 22,000 RPM and mounts via a steel shank for secure chuck attachment in rotary tools, die grinders, and drill presses. At 0.75 inches in brush diameter, it reaches into tight bores, tubes, and recessed areas where larger brushes cannot fit. Machinists, maintenance technicians, pipefitters, and fabricators commonly use this type of end brush for weld prep and rust removal.

The 88529 suits applications requiring controlled, localized abrasion in fabrication shops, maintenance facilities, and field service work. The knotted wire configuration delivers more aggressive cutting action than crimped wire, making it appropriate for removing scale, weld slag, oxidation, and light burrs from stainless steel, carbon steel, and similarly hard surfaces. The compact 0.75-inch brush diameter allows access to confined areas such as pipe interiors, valve seats, and machined bores.

Key Features

• Knotted stainless steel wire fill for aggressive material removal and long service life
• 22,000 maximum RPM rating suitable for high-speed rotary tools and die grinders
• 0.75 inch brush diameter for precise, localized surface treatment in tight areas
• Steel shank included for direct chuck mounting — no adapter required
• Non-piloted, non-bridled, non-encapsulated design for straightforward use
• Lightweight at 0.15 pounds for reduced operator fatigue during extended use

Compatibility

Designed as a standard end brush for use with rotary tools, die grinders, and drill presses that accept a shank-mounted wire brush. Verify that the tool's rated RPM meets or exceeds the 22,000 RPM maximum before mounting.

Installation Notes

Installation is performed by qualified machinists or maintenance technicians using appropriate rotary equipment. Always confirm the tool's RPM rating does not exceed the brush's 22,000 RPM maximum before operation. Wear ANSI-rated eye and face protection and appropriate gloves when operating wire brushes. Inspect the brush for damaged or broken wires before each use and replace if wire integrity is compromised.