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The VALUE COLLECTION S04185898 is a knotted steel cup brush designed for aggressive surface preparation, weld cleaning, rust removal, and scale stripping on metal workpieces. The brush measures 5 inches in diameter and runs a single row of knotted steel wire at 0.0314 inches wire diameter, delivering a coarse cutting action that clears heavy deposits efficiently. It is rated to a maximum of 6,500 RPM and mounts via a 5/8-11 threaded arbor, making it compatible with standard right-angle grinders used in fabrication, maintenance, and industrial trades.
This cup brush is suited for use in metal fabrication shops, structural steel work, pipeline maintenance, and general industrial applications where heavy burr removal, rust stripping, or surface conditioning is required before welding or coating. The knotted wire configuration provides greater aggression than crimped wire brushes, making it a practical choice for coarse-grade work on ferrous metals. It is sold individually and fits grinders equipped with a 5/8-11 spindle thread.
Designed as a replacement or jobsite-supply cup brush for right-angle grinders with a 5/8-11 threaded spindle. Verify your grinder spindle thread matches before mounting.
Installation and operation should be performed by qualified personnel familiar with angle grinder safety. Before mounting, disconnect the grinder from its power source and confirm the tool spindle speed meets or exceeds the brush RPM rating. Thread the brush firmly onto the 5/8-11 arbor and verify it is fully seated before restoring power. Always wear appropriate PPE including face shield and gloves when operating wire cup brushes, and never exceed the marked maximum RPM.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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