3M 7000121899 Non-woven Buff Blend Hp Disc 12 Inch Ao

Product Description

The 3M 7000121899 is a non-woven abrasive disc designed for aggressive surface preparation work on metal. Built with HP (high performance) material, it is stiffer and more tear-resistant than standard GP-grade non-woven discs, making it well suited for edge deburring and removal of tough contaminants. The abrasive mineral is aluminum oxide, which cuts sharp and produces a consistent scratch pattern on both ferrous and non-ferrous metals. Rated for operation up to 1800 RPM, this 12-inch disc is sized for use on right-angle grinders and rotary tools in fabrication and metalworking environments. It is installed and used by machinists, metal fabricators, and maintenance technicians requiring controlled, repeatable surface finishing results.

This disc is intended for applications that include deburring cut edges, blending welds, and removing scale, rust, or other stubborn surface contaminants from metal workpieces. The pliable open-web construction conforms to contours without gouging the base material, allowing the technician to work aggressively while preserving substrate integrity. The open-web structure also resists loading, reducing debris buildup that can reduce abrasive effectiveness during extended use. It is appropriate for both shop and field metalwork scenarios where a medium-to-large disc format is required.

Key Features

• HP non-woven material is stiffer and more tear-resistant than GP-grade for demanding edge deburring and metal removal
• Aluminum oxide abrasive mineral delivers sharp, consistent cutting action on ferrous and non-ferrous metals
• Pliable open-web construction conforms to workpiece contours without gouging the substrate
• Open-web design resists loading and limits debris buildup during extended use
• 12-inch diameter suits medium-to-large surface preparation tasks
• Rated to 1800 RPM for use with standard rotary grinder equipment

Compatibility

Designed for use on ferrous and non-ferrous metals in deburring, blending, and surface preparation applications. Compatible with rotary equipment rated to accept 12-inch non-woven abrasive discs at up to 1800 RPM.

Installation Notes

This disc is mounted by metalworking and fabrication professionals on right-angle grinders or rotary finishing tools. Before mounting, confirm the tool spindle speed does not exceed the 1800 RPM disc rating. Ensure the tool is unplugged or its power source is isolated before changing discs. Inspect the disc for damage before each use and do not use a disc that shows tears or deformation in the non-woven web.

Technical Specifications

• Diameter: 12 inches
• Abrasive Material: Aluminum Oxide
• Construction: Non-Woven Open Web
• Grade: HP (High Performance)
• Maximum Speed: 1800 RPM
• Attachment Style: Plain
• Weight: 15.05 pounds
• Package Dimensions: 15.38 x 15.38 x 15.75 inches
• Unit of Measure: Each
• UPC: 051115332253

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000121899