3M 7100020210 Quick Change Disc 1 Inch Coarse Ao

Product Description

The 3M 7100020210 is a 1-inch diameter quick change surface conditioning disc designed for cleaning, blending, and prep work in a single pass. Built on an open-web RC material with an aluminum oxide abrasive, it delivers consistent cut rate under moderate pressure while resisting loading from paint, corrosion, and soft-metal debris. The RC web breaks down progressively to expose fresh fibers and mineral, maintaining effectiveness throughout the disc life. Installers and fabricators in metalworking, composite fabrication, and surface finishing applications rely on this disc to reduce steps between initial prep and final coating or finish application.

This disc is suited for use on flat surfaces, composites, and softer metals including aluminum. Typical applications include coating removal, blending, light deburring, and surface finishing where minimizing gouging is a priority. The coarse grade targets moderate-to-aggressive material removal on workpieces that require controlled surface conditioning before priming or painting. The open-web construction conforms to minor surface irregularities, making it practical for workpieces that are not perfectly flat.

Key Features

• Aluminum oxide abrasive on RC open-web material provides good initial and sustained cut rate
• Load-resistant construction reduces clogging from paint, corrosion, and soft-metal debris
• Open-web structure conforms to surface irregularities and minimizes gouging
• Coarse grade suited for blending, coating removal, finishing, and light deburring on flat surfaces
• Quick change attachment system allows fast disc swaps to improve tool efficiency and reduce downtime
• Well-suited for use on composites and soft metals such as aluminum

Compatibility

Designed for use with standard quick change disc holders and right-angle grinders or die grinders that accept 1-inch quick change accessories.

Installation Notes

Disc installation and removal should be performed with the tool powered off and disconnected from the power source. Ensure the quick change mandrel or holder is rated for the disc diameter and the tool RPM does not exceed the disc rating. Wear appropriate PPE including eye protection and gloves when operating abrasive discs. Inspect the disc for tears or damage before each use and replace if wear is uneven or the web is compromised.