3M 7100138297 Scotch-brite Bristle Disc 3 Inch 220 Grit

Product Description

The 3M 7100138297 is a Scotch-Brite Radial Bristle Disc designed for surface preparation and finishing work on metal, painted, and coated surfaces. Built with proprietary 3M ceramic abrasive grain molded directly into flexible bristles, the disc maintains consistent cutting action throughout its full service life. At 3 inches in diameter and rated at 220 grit, it is engineered for fine finishing, coating removal, deburring, and blending operations. The curved bristle design increases surface contact compared to flat wire brushes, making it effective on contoured and complex part geometries. Sheet metal fabricators, welders, and maintenance technicians are the primary installers of this disc.

This bristle disc suits a wide range of surface preparation tasks in industrial, commercial, and field service environments. Common applications include removal of paint, rust, weld burns, heavy oxides, adhesives, stains, and other surface contaminants from large areas. The flexible bristle construction allows the disc to conform to irregular profiles, making it useful for both flat surfaces and complex contoured parts. The 220 grit ceramic abrasive grade targets fine finishing and light stock removal rather than aggressive grinding.

Key Features

• Proprietary 3M ceramic abrasive grain delivers aggressive cutting and consistent finish quality throughout disc life
• Molded abrasive-filled bristles strip, deburr, blend, finish, polish, clean, and remove coatings with less applied pressure than wire brushes
• Flexible bristles conform to contours and complex part geometries for consistent surface contact
• Bristle spacing optimized for coating removal and high-loading substance clearing
• Contains no wire filaments, reducing hazard from wire fragment ejection during use
• Curved disc profile increases effective surface contact area over flat alternatives

Compatibility

Designed for use with angle grinders and rotary tools that accept 3-inch radial bristle disc arbor configurations. Verify tool RPM rating against the disc maximum speed rating before use.

Installation Notes

This disc is installed and operated by metal fabricators, welders, and maintenance technicians using compatible angle grinders or rotary power tools. Always power down and disconnect the tool from its power source before mounting or removing the disc. Confirm the tool spindle speed does not exceed the disc maximum rated RPM. Operators should wear appropriate PPE including eye protection and gloves during use.

Technical Specifications

• Diameter: 3 inches
• Grit: 220
• Abrasive Material: Ceramic
• Profile: Curved
• Weight: 0.01 pounds
• Package Dimensions: 6.3 x 6.3 x 4.6 inches
• Unit of Measure: Each
• UPC: 00048011301280

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138297