Weiler 94674 Knotted Wheel Brush 4 in Stainless 20000 Rpm

Product Description

The WEILER 94674 is a knotted wheel brush designed for aggressive surface conditioning, weld cleaning, deburring, and rust or scale removal on metal workpieces. The brush measures 4 inches in outside diameter with a 1/4-inch face width and mounts via a 5/8-11 threaded arbor hole, making it compatible with standard angle grinders and bench grinders equipped with a matching threaded spindle. Fill material is stainless steel wire in a cable twist knot configuration with a filament wire diameter in the 0.0200 to 0.0299 inch range. The maximum rated speed is 20,000 RPM. At 0.5 pounds, this brush is built for sustained use in fabrication shops, maintenance environments, and field metalwork applications.

This wheel brush suits industrial and trade applications where aggressive surface prep is required on stainless steel, carbon steel, or other hard metals. Typical use cases include pre-weld and post-weld cleanup, coating removal, and surface texturing. The knotted wire construction delivers higher cutting action than crimped wire, making it the preferred choice for heavy mill scale, spatter, and corrosion removal. Installation requires a grinder or rotary tool fitted with a 5/8-11 threaded spindle. No shank is included with this brush.

Key Features

• 4-inch outside diameter with 1/4-inch face width for focused surface contact
• Knotted cable twist stainless steel wire for high-aggression surface conditioning
• 5/8-11 threaded arbor mount for direct spindle attachment on compatible grinders
• Maximum rated speed of 20,000 RPM
• 7/8-inch trim length for consistent wire projection and contact pressure
• Filament wire diameter in the 0.0200 to 0.0299 inch range for effective scale and spatter removal

Compatibility

Designed for use with angle grinders and bench grinders fitted with a 5/8-11 threaded spindle. No additional arbor adapter or shank is included.

Installation Notes

Installation and use of this wheel brush should be performed by qualified personnel familiar with abrasive and wire brush safety standards. Always power down and disconnect or de-energize the grinder before mounting or removing the brush. Verify the spindle thread size matches the 5/8-11 arbor before installation, and confirm the grinder RPM rating meets or exceeds the brush maximum of 20,000 RPM. Wear appropriate eye, face, and hand protection during operation, as wire fragments can be expelled at high speed.