Weiler 94849 Knotted Wheel Brush 4 Inch Carbon Steel

Product Description

The WEILER 94849 is a knotted wire wheel brush designed for aggressive surface preparation on metal, welds, and castings. Built with carbon steel fill material and a 5/8-11 threaded arbor hole, it mounts directly to angle grinders and compatible threaded spindle tools. The 4-inch outside diameter and knotted wire construction deliver high-impact scrubbing action, making it well suited for removing rust, mill scale, weld spatter, and heavy surface contamination. Rated to 20,000 RPM, it handles the output of most standard angle grinders used in fabrication and maintenance work. Installation and operation require proper face shield, gloves, and adherence to tool guard requirements.

This wheel brush is used across metal fabrication shops, structural steel work, pipeline maintenance, and general industrial maintenance applications. The knotted wire configuration is preferred when aggressive material removal is the priority over surface finish. It is a common tool for welders and ironworkers preparing joint surfaces and cleaning post-weld beads. The 3/8-inch face width and 7/8-inch trim length make it practical for surface work where a narrower contact profile is needed.

Key Features

• Knotted carbon steel wire for aggressive rust, scale, and spatter removal
• 4-inch outside diameter fits standard angle grinder applications
• 5/8-11 threaded arbor for direct spindle mounting without adapter
• 20,000 RPM maximum speed rating
• 3/8-inch face width and 7/8-inch trim length for controlled contact
• No shank included — mounts via threaded arbor hole

Compatibility

Designed for use with angle grinders and bench grinders equipped with a 5/8-11 threaded spindle. No separate adapter or shank is included or required for threaded-spindle tools.

Installation Notes

Installation and use of wire wheel brushes must comply with ANSI B7.1 safety standards for abrasive and power brush tools. Always power down and disconnect the grinder before mounting or removing the brush. Confirm the tool spindle speed does not exceed the 20,000 RPM rating marked on the brush. Operators should wear a full face shield, leather gloves, and appropriate PPE, as wire fragments can become projectiles during use.