3M 7010309345 Surface Conditioning Disc 4 Inch Medium

Product Description

The 3M 7010309345 is a non-woven surface conditioning disc designed for cleaning, blending, deburring, and finishing applications across metal, composite, plastic, and other materials. Built with open-web, non-woven fiber construction, the disc conforms to irregular and contoured surfaces without undercutting or damaging the base material. At 4 inches in diameter and rated medium grade with an aluminum oxide abrasive, it mounts to right-angle grinders via a hook-and-loop attachment system for fast, repeatable disc changes in multi-step finishing workflows. This disc is a standard tool for fabricators, welders, and metalworkers requiring controlled surface preparation.

This disc is suited for light industrial and fabrication environments where surface conditioning is needed before coating, painting, or further finishing. The open-web construction resists loading and runs cool, extending usable life during prolonged operations. Typical applications include weld blending, scale removal, light deburring, and surface preparation on flat or contoured workpieces. The hook-and-loop system makes it especially efficient in multi-step processes where abrasive grade changes are frequent.

Key Features

• Non-woven fiber construction conforms to contoured and irregular surfaces without gouging the base material
• Open-web design runs cool and resists loading for extended service life
• Medium-grade aluminum oxide abrasive suitable as a starting point for cleaning, blending, and light deburring
• Hook-and-loop attachment enables rapid disc changes in multi-step finishing processes
• Compatible with metal, composite, plastics, and other common fabrication materials
• Right-angle grinder mount for use with standard angle grinders and right-angle disc tools

Compatibility

Designed for use with right-angle grinders equipped with a hook-and-loop backing pad accepting 4-inch non-woven surface conditioning discs.

Installation Notes

Installation is performed by fabricators or metalworkers using a right-angle grinder fitted with a compatible hook-and-loop backing pad. Ensure the tool is powered off and disconnected before mounting or removing the disc. Verify the backing pad diameter and attachment type match the disc before operation. Follow all applicable ANSI and tool manufacturer safety guidelines for abrasive disc use, including use of appropriate PPE such as eye protection and gloves.

Technical Specifications

• Diameter: 4 inches
• Abrasive Type: Aluminum Oxide
• Grade: Medium
• Construction: Non-Woven
• Attachment Type: Hook and Loop
• Tool Compatibility: Right Angle Grinder
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010309345