3M 7100138291 Radial Bristle Brush 6in Grade 80 Yellow

Product Description

The 3M 7100138291 is a Scotch-Brite Radial Bristle Brush designed for surface blending, deburring, and finishing on metal and other hard materials. Each brush measures 6 inches in diameter, 1/2 inch in face width, and has a 1 inch arbor hole. The abrasive filaments are made from a blend of Aluminum Oxide and Cubitron abrasive mineral, rated at Grade 80 for moderate stock removal and surface conditioning. An adapter is included in the package. This tool is used by HVAC technicians, pipefitters, plumbers, and fabricators who need consistent, controlled surface preparation without aggressive grinding.

This brush is suited for weld blending, pipe end preparation, deburring cut edges, and general surface conditioning on metal components. It is commonly used in both shop and field environments where a consistent scratch pattern or clean surface finish is needed before brazing, welding, or coating. The yellow color coding identifies the Grade 80 grit level within the Scotch-Brite Radial Bristle Brush product line. Units are sold individually but are packaged in quantities of 5 per case.

Key Features

• Grade 80 abrasive rating for moderate cut and surface conditioning
• Aluminum Oxide and Cubitron abrasive filament construction for consistent performance
• 6 inch diameter with 1/2 inch face width and 1 inch arbor hole
• Includes adapter for compatibility with standard bench grinders and angle grinders
• Yellow color coding identifies Grade 80 grit level for quick job-site identification
• Packaged 5 per case for multi-technician supply or high-volume shop use

Compatibility

Designed for use with bench grinders and right-angle grinders accepting a 1 inch arbor; an adapter is included to accommodate common spindle configurations.

Installation Notes

Installation and mounting should be performed by qualified tradespeople familiar with rotary abrasive tooling. Always power down and disconnect the grinder before mounting or removing the brush. Verify that the grinder RPM rating does not exceed the maximum rated RPM of the brush before operation. Eye protection and appropriate PPE are required when operating rotary abrasive tools.

Technical Specifications

• Diameter: 6 inches
• Face Width: 1/2 inch
• Arbor Hole: 1 inch
• Abrasive Grade: 80
• Color: Yellow
• Material: Aluminum Oxide and Cubitron
• Includes: Adapter
• Weight: 0.64 pounds
• Packaging Quantity: 5 per case

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138291