3M 7000021284 Radial Bristle Brush 6in 400 Grit with Adapter

Product Description

The 3M 7000021284 is a radial bristle brush designed as a durable, lower-risk alternative to wire brushes for surface preparation and cleaning tasks. Each brush features aluminum oxide and Cubitron abrasive grain integrated into the bristles, allowing it to clean and condition surfaces with minimal applied pressure. At 6 inches in diameter with a 7/16-inch arbor and 1-inch brush face width, it is sized for use on bench motors and similar rotary equipment. The package includes a universal bench-motor adapter. Trade professionals in HVAC, plumbing, and general metalworking will find it suited for removing coatings, rust, scale, and contamination from metal surfaces.

This radial bristle brush is used for surface preparation across a range of industrial and trade applications. It works on a variety of coatings including paint, rust, and oxidation, making it a practical tool for HVAC techs prepping pipe or coil surfaces, plumbers cleaning fittings, and fabricators conditioning metal stock. Its abrasive mineral construction delivers consistent cut without the wire-shedding hazard associated with conventional wire brushes, reducing the risk of embedded wire fragments in work surfaces or nearby personnel.

Key Features

• Aluminum oxide and Cubitron abrasive grain bristles for consistent surface conditioning
• Cleans and prepares surfaces with minimal applied pressure
• Safe alternative to wire brushes — no wire shedding hazard
• Works on a variety of coatings including rust, scale, and paint
• Includes universal bench-motor adapter for quick setup
• 6-inch diameter with 1-inch face width suits standard bench-motor configurations

Compatibility

Designed for use with bench motors and rotary tools accepting a 7/16-inch arbor; the included universal bench-motor adapter broadens fitment to common bench-motor configurations.

Installation Notes

Installation and use should be performed by qualified trade professionals or experienced operators familiar with rotary abrasive equipment. Always power down and de-energize the bench motor before mounting or removing the brush. Verify that the motor RPM rating does not exceed the maximum rated speed of the brush before operation. Wear appropriate eye and face protection when operating any rotary abrasive tool.

Technical Specifications

• Diameter: 6 inches
• Arbor Size: 7/16 inches
• Face Width: 1 inch
• Abrasive Grain: Aluminum Oxide and Cubitron
• Grit: 400
• Weight: 0.54 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 5
• UPC: 00048011332147

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000021284