Weiler 90322 End Brush 3/4 in Stainless Steel Knotted Wire

Product Description

The WEILER 90322 is a knotted-wire end brush designed for aggressive surface preparation and weld cleaning in metal fabrication, maintenance, and industrial applications. The brush features a 3/4-inch diameter stainless steel fill with a knotted wire configuration, delivering high-impact abrasive action for rust removal, scale removal, and deburring. A 6 mm shank mounts directly into standard die grinders and rotary tools. Rated to 22,000 RPM, it suits high-speed power tools common in professional trade and shop environments. Wire diameter falls in the 0.0101 to 0.0200-inch range, providing a balance of aggression and surface reach. The hollow center design allows wire tips to contact the work surface efficiently.

This end brush is suited for use on stainless steel, carbon steel, and similar hard metals where a stainless wire fill is required to prevent cross-contamination. Typical applications include weld prep, weld spatter cleanup, pipe end conditioning, and spot surface treatment in tight or recessed areas. It is well suited to fabrication shops, pipe trades, and field maintenance work where a compact rotary brush is needed in confined spaces.

Key Features

• 3/4-inch brush diameter for targeted surface preparation
• Knotted stainless steel wire for aggressive cutting action
• 6 mm shank diameter fits standard die grinder collets
• 22,000 RPM maximum rating compatible with high-speed rotary tools
• Wire diameter range of 0.0101 to 0.0200 inches for effective abrasive contact
• Hollow center construction maximizes wire tip engagement at the work surface

Compatibility

Designed for use with die grinders and rotary tools accepting a 6 mm shank. Confirm maximum tool RPM does not exceed 22,000 RPM before use.

Installation Notes

Installation is performed by trade professionals and experienced operators familiar with rotary abrasive tooling. Always confirm the tool spindle speed does not exceed the brush maximum RPM rating of 22,000 before mounting. Power down and disconnect the tool from its power source before installing or removing the brush. Eye protection and appropriate PPE are required when operating wire brushes at high speed.