3M 7000120841 Surface Conditioning Disc 4 Inch Coarse

Product Description

The 3M 7000120841 is a non-woven surface conditioning disc designed for cleaning, blending, deburring, and finishing applications across metal, composite, plastic, and other base materials. The open-web, non-woven fiber construction runs cool during operation and resists loading, extending disc life during multi-step finishing work. At 4 inches in diameter and rated for coarse cutting action, this disc mounts to right-angle grinders via a hook-and-loop attachment system, allowing fast changeover between grades without tools. It is a practical choice as a first-step abrasive in surface prep sequences.

This disc is suited to both shop and field finishing work wherever a conformable abrasive is needed on irregular or contoured surfaces. The aluminium oxide abrasive grain performs on ferrous and non-ferrous metals as well as composites and plastics. The coarse grade makes it appropriate for initial scale removal, weld blending, and surface conditioning before finer finishing steps. Installers and fabricators in HVAC sheet metal, plumbing, electrical, and general mechanical trades will find it a fit for routine surface prep tasks.

Key Features

• Non-woven fiber construction conforms to irregular and contoured surfaces without undercutting or damaging base material
• Open web design runs cool and resists loading for extended use
• Hook-and-loop attachment enables fast disc changeover in multi-step finishing sequences
• Coarse aluminium oxide (AO) abrasive grain handles cleaning, blending, deburring, and light material removal
• Suitable for use on metal, composite, plastics, and similar materials

Compatibility

Designed for use with right-angle grinders and disc tools that accept 4-inch hook-and-loop surface conditioning discs.

Installation Notes

Install and remove this disc only with the tool powered off and unplugged or the air supply disconnected. Verify the tool spindle speed rating meets or exceeds the disc maximum RPM before mounting. Wear appropriate eye and face protection during use. Inspect the disc for damage before each use and do not use a disc that is torn or shows signs of delamination.