3M 7100138336 Radial Bristle Brush 400 Grit

Product Description

The 3M 7100138336 is a radial bristle brush designed for surface preparation, cleaning, and finishing on a range of materials. It measures 7.625 inches in diameter by 1 inch in width with a 1.25-inch bore and is engineered with aluminum oxide and Cubitron abrasive grain bristles. The brush delivers consistent, controlled abrasive action with minimal applied pressure, reducing operator fatigue during extended use. It is intended for bench motor or stationary spindle applications and is sold as an individual unit. The package includes a universal bench motor adapter for straightforward mounting.

This radial bristle brush is suited for light deburring, blending, cleaning, and coating removal on metal, composite, and painted surfaces. It functions as a direct replacement for conventional wire brushes in applications where wire contamination or surface damage is a concern. Typical install scenarios include metalworking shops, maintenance and repair operations, and fabrication environments where a controlled abrasive action is required without aggressive material removal.

Key Features

• Aluminum oxide and Cubitron abrasive grain bristles for consistent, repeatable cut
• Rated at 400 grit for fine surface finishing and light cleaning
• Wire-brush replacement that eliminates embedded wire contamination risk
• Operates with minimal applied pressure, reducing operator fatigue
• Includes universal bench motor adapter for quick mounting
• Works on a variety of coatings, metals, and composite substrates

Compatibility

Designed for use on bench motors and stationary spindle equipment accepting a 1.25-inch bore arbor. Compatible with applications requiring a wire brush alternative for cleaning, blending, or light coating removal.

Installation Notes

Installation is performed by qualified shop personnel or maintenance technicians. Power down and lock out the bench motor before mounting or removing the brush. Secure the arbor nut to the manufacturer specification using appropriate wrenches before operating. Always verify the rated operating speed of the equipment does not exceed the brush rating before use, and wear appropriate personal protective equipment including eye protection during operation.

Technical Specifications

• Diameter: 7.625 inches
• Width: 1 inch
• Bore Size: 1.25 inches
• Abrasive Mineral: Aluminum Oxide and Cubitron Abrasive Grain
• Grit: 400
• Weight: 3.9 pounds
• Unit of Measure: Each
• UPC: 00048011330853

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138336