3M 7100189667 Scotch-brite Roloc Bf-dr Disc 3/4 in Ao Medium

Product Description

The 3M 7100189667 is a Scotch-Brite Roloc BF-DR Blend and Finish Disc designed for surface conditioning work on metal. It uses an aluminum oxide mineral in a medium grade to cut through weld burns, light burrs, and surface rust without gouging the base material. The open web, non-woven construction flexes and conforms to irregular surfaces, leaving a consistent satin finish that is paint-ready. The integrated Roloc threaded button allows fast, secure disc changes on compatible right-angle grinders and disc tools. Metalworkers, fabricators, and maintenance techs reach for this disc when a refined, burr-free surface is required after welding or grinding operations.

This disc is suited for light deburring, weld burn removal, blending, satin finishing, and rust removal on ferrous and non-ferrous metals. At 3/4 inch in diameter, it is well suited for tight access areas, tube ends, pipe joints, and small weld seams where a larger disc cannot reach cleanly. It fits production and job-shop environments alike, and the load-resistant construction extends disc life under continuous use. Licensed tradespeople and skilled fabricators working to surface quality specifications will find the finish output consistent across passes.

Key Features

• Aluminum oxide mineral at medium grade for efficient removal of weld burns, small burrs, and surface rust
• Flexible, conformable non-woven web construction adapts to irregular and contoured surfaces
• Open web design resists loading and extends usable disc life
• Produces a consistent satin finish that is paint-friendly and burr-free
• Roloc threaded quick-change button allows fast, tool-free disc swaps
• 3/4 inch diameter fits tight-access areas and small-diameter weld joints

Compatibility

Designed for use with Roloc-compatible right-angle disc grinders and rotary tools that accept the standard Roloc threaded quick-change arbor system.

Installation Notes

Installation and disc changes should be performed with the tool unplugged or the air supply disconnected. Verify the tool spindle speed does not exceed the rated RPM of the disc before operation. Eye protection and appropriate hand protection are required during grinding and surface conditioning operations. Inspect the disc for damage before each use and discard any disc showing tears, unraveling, or visible deterioration of the web.

Technical Specifications

• Diameter: 3/4 inch
• Abrasive Mineral: Aluminum Oxide
• Grade: Medium
• Attachment Type: Roloc Threaded Quick-Change
• Construction: Open Web Non-Woven
• Weight: 0.719 pounds
• UPC: 638060297297

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100189667