3M 7100138301 Radial Bristle Brush Disc 6 in 80 Grit Refill

Product Description

The 3M 7100138301 is a radial bristle brush replacement disc designed for surface preparation, cleaning, and finishing tasks across a range of trade and industrial applications. Sold as a refill pack of replacement discs, this product allows technicians to replenish worn radial bristle assemblies without replacing the entire brush unit. The disc measures 6 inches and is rated at 80 grit, making it suitable for moderate surface work including cleaning welds, removing coatings, and light deburring. The bristle construction delivers consistent surface contact with minimal applied pressure, reducing operator fatigue during extended use.

This replacement disc is used in HVAC, plumbing, and general mechanical trades wherever surface cleaning, rust removal, or light coating removal is required. It serves as a safer alternative to wire brushes, eliminating the hazard of wire fragment ejection during use. Compatible with bench motors using the included universal bench motor adapter, it fits into standard shop setups without additional hardware. Applications include cleaning pipe ends, tube fittings, valve seats, and metal surfaces prior to soldering, brazing, or coating.

Key Features

• 6-inch disc diameter for broad surface coverage on bench motor setups
• 80 grit rating for moderate cleaning and coating removal
• Bristle design cleans with minimal applied pressure, reducing operator fatigue
• Safe alternative to wire brushes — no wire fragment ejection risk
• Works on a variety of coatings and base materials
• Includes universal bench motor adapter for straightforward installation

Compatibility

Designed as a replacement refill disc for radial bristle brush systems used with standard bench motors. Includes a universal bench motor adapter. Verify disc arbor size and brush assembly compatibility before installation.

Installation Notes

Installation is typically performed by maintenance technicians or trade professionals using standard bench motor equipment. Power down and disconnect the bench motor before mounting or removing any disc or brush assembly. Secure the disc firmly to the arbor before resuming operation and confirm the assembly is rated for the motor RPM in use. Follow applicable shop safety practices and wear appropriate eye and face protection during operation.

Technical Specifications

• Disc Diameter: 6 inches
• Grit: 80
• Package Weight: 2.45 pounds
• Unit of Measure: Pack
• Minimum Order Quantity: 2
• UPC: 00048011330556

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138301