Weiler 94630 Knotted Wheel Brush 3 Inch 25000 Rpm

Product Description

The WEILER 94630 is a 3-inch knotted wheel brush designed for aggressive surface preparation, weld cleaning, and deburring on metal workpieces. It mounts via a 1/2-inch arbor hole and runs at a maximum of 25,000 RPM, making it suitable for use with right-angle grinders and bench grinders. The fill material is stainless steel wire in a standard twist knot configuration, with a filament diameter in the 0.010-0.019 inch range. The 5/8-inch trim length and 3/8-inch face width deliver focused contact pressure on weld seams, scale, and surface oxides. This brush is a standard tool for metal fabricators, welders, pipefitters, and maintenance technicians working on stainless steel or other corrosion-sensitive materials.

This wheel brush is suited for light to medium-duty surface conditioning on ferrous and non-ferrous metals where stainless steel wire is required to prevent cross-contamination. Typical applications include post-weld cleanup, rust and scale removal, and surface prep before coating or inspection. The knotted wire construction provides more aggressive cutting action than crimped wire brushes of the same diameter, making it a practical choice in fabrication shops, pipe yards, and field maintenance environments.

Key Features

• 3-inch outside diameter with 3/8-inch face width for focused surface contact
• Knotted stainless steel wire in standard twist configuration for aggressive cutting action
• Rated to 25,000 RPM — compatible with most small right-angle and bench grinders
• 1/2-inch arbor hole mount — no shank included, arbor hardware required
• 0.010-0.019 inch filament diameter range for effective scale and weld spatter removal
• Stainless steel fill prevents iron contamination on stainless steel base materials

Compatibility

Designed for use with grinders and rotary tools that accept a 1/2-inch arbor hole mounting and operate within the 25,000 RPM maximum speed rating of this brush.

Installation Notes

Installation is performed by machinists, fabricators, or maintenance technicians familiar with abrasive accessory tools. Always confirm the grinder or rotary tool speed rating does not exceed the 25,000 RPM maximum marked on this brush before mounting. Power down and disconnect the tool from its power source before installing or removing the brush. Wear appropriate PPE including a face shield and gloves when operating knotted wire brushes, as wire tips can break free during use.