3M 7100038608 Radial Bristle Brush Disc 8 Inches 120

Product Description

The 3M 7100038608 is a radial bristle brush replacement disc designed to clean, deburr, and surface-finish metal and other materials without the aggression of conventional wire brushes. The disc measures 8 inches in diameter and features 120-grit abrasive bristles that cut with light contact pressure, reducing the risk of gouging or distorting the workpiece surface. This disc is sold as a refill pack for trade professionals who run radial bristle brush systems on bench motors or similar rotary equipment. It suits applications where controlled, consistent abrasion is required across irregular or contoured surfaces.

This replacement disc is suited to metal fabrication, welding prep and cleanup, pipe end conditioning, and general surface preparation in HVAC, plumbing, and light industrial settings. The bristle construction allows the disc to conform to curved and irregular geometries, making it useful when flat abrasive media cannot reach the work surface. The pack includes a universal bench motor adapter, so the disc can be mounted and put to work without sourcing a separate arbor.

Key Features

• 120-grit abrasive bristles deliver controlled surface finishing with minimal pressure
• 8-inch diameter disc fits standard bench motor setups via included universal adapter
• Radial bristle design conforms to contoured and irregular surfaces
• Safe alternative to wire brushes, reducing risk of wire fragment ejection
• Sold as a refill pack for existing radial bristle brush tool systems

Compatibility

Designed as a refill replacement disc for radial bristle brush bench motor systems that accept 8-inch diameter radial bristle discs with a universal arbor adapter.

Installation Notes

Installation is performed by qualified shop technicians or trade professionals familiar with bench motor tooling. Power down and disconnect the bench motor from its power source before mounting or removing any disc or adapter. Verify that the bench motor RPM rating is compatible with the disc before operation. Follow applicable shop safety protocols, including use of eye protection and guarding, when operating rotary abrasive tooling.

Technical Specifications

• Diameter: 8 inches
• Grit: 120
• Weight: 6.07 pounds
• Package UOM: Pack
• Minimum Order Quantity: 1
• UPC: 00048011331775

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100038608