3M 7000121143 Non-woven Hook Disc 11.25 in Aluminum Oxide

Product Description

The 3M 7000121143 is a non-woven hook and loop abrasive disc engineered for fine finishing, paint prepping, and scratch blending across a wide range of surfaces. At 11.25 inches in diameter and rated for up to 2800 RPM, this disc uses an aluminum oxide mineral to deliver a high cut rate while maintaining surface consistency. The open, non-woven 3D structure resists loading and heat buildup, allowing the disc to maintain cutting action throughout its service life. Licensed tradespeople and finishing technicians in metal fabrication, automotive prep, and woodworking applications are the primary users of this disc.

This disc is suited for both production and detail finishing work on aluminum, stainless steel, plastics, wood, and fiberglass. Its non-woven construction conforms to irregular and contoured surfaces, making it practical for blending welds, scuffing primer, and conditioning metal before coating. The hook and loop attachment system allows rapid disc swaps during multi-step finishing sequences, reducing downtime between abrasive grits or finishing stages.

Key Features

• 11.25-inch diameter non-woven disc rated to 2800 RPM
• Aluminum oxide mineral delivers high cut rate with fine, consistent surface finish
• Hook and loop quick-change attachment system enables fast disc swaps in multi-step processes
• Non-woven 3D structure resists loading and heat for extended disc life
• Conforms to irregular surfaces without undercutting or damaging base material
• Effective on aluminum, stainless steel, plastics, wood, and fiberglass

Compatibility

Designed for use with hook and loop style random orbital and right-angle disc sanders accepting 11.25-inch non-woven discs operating at or below 2800 RPM.

Installation Notes

This disc is installed by finishing technicians and abrasive specialists using compatible hook and loop disc sanders. Before mounting, confirm the backing pad is clean and free of debris to ensure full hook engagement and safe disc retention. Always verify the tool RPM rating does not exceed the 2800 RPM maximum marked on the disc. Inspect the disc for tears or separation before each use and remove it from service if damage is found.

Technical Specifications

• Diameter: 11.25 inches
• Maximum Speed: 2800 RPM
• Abrasive Material: Aluminum Oxide
• Construction: Non-Woven
• Attachment Type: Hook and Loop
• Unit Weight: 0.23 pounds
• Package Length: 12.9 inches
• Package Width: 12.9 inches
• Package Height: 4.6 inches
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000121143