3M 7000120840 Scotch-brite 4 Inch Conditioning Disc Medium

Product Description

The 3M 7000120840 is a Scotch-Brite Surface Conditioning Disc built for cleaning, blending, deburring, and finishing on a wide range of surfaces. Constructed from durable non-woven fiber, the disc conforms to irregular and contoured profiles without undercutting or damaging the base material. At 4 inches in diameter and rated medium grade with aluminum oxide abrasive, it is sized for right-angle grinder use. The open-web construction allows heat to dissipate during operation, reducing the risk of material distortion. Trade professionals in metal fabrication, HVAC sheet metal work, and general maintenance use this disc as a controlled, consistent surface prep tool.

This disc is suited for residential and commercial applications wherever controlled surface conditioning is needed. It performs on metal, composites, plastics, and similar materials. The hook-and-loop attachment system allows fast disc swaps during multi-step finishing sequences, making it practical for production environments and field service work alike. It is packaged in a box with a minimum quantity of 4 discs per order.

Key Features

• Non-woven fiber construction conforms to contoured and irregular surfaces without gouging or undercutting
• Open-web material runs cool and resists loading for extended use
• Aluminum oxide abrasive, medium grade, for cleaning, blending, and light deburring
• Hook-and-loop attachment allows fast disc changes in multi-step finishing processes
• Compatible with metal, composites, plastics, and other common work materials

Compatibility

Designed for use with right-angle grinders accepting 4-inch hook-and-loop surface conditioning discs.

Installation Notes

Installation and disc changes should be performed with the grinder powered off and unplugged or locked out per applicable safety procedures. Confirm the grinder's rated RPM meets or exceeds the disc's maximum operating speed before mounting. Inspect the hook-and-loop backing for wear before each use to ensure secure attachment during operation.