3M 7100215945 Hook Loop Disc 320 Grit 5 Inch 50 Pack

Product Description

The 3M 7100215945 is a 5-inch hook and loop abrasive disc designed for fine finishing and surface preparation work. Built on a C-weight paper backing with a ceramic aluminum oxide abrasive coating, this disc delivers consistent cutting action at 320 grit. The hook and loop attachment system allows for quick disc changes without adhesive residue or downtime. Each package contains 50 discs, making it a practical stock item for shops running high daily throughput on sanding and blending operations.

This disc is used in collision repair, commercial and specialty vehicle refinishing, and marine surface preparation applications. The 320 grit rating places it in the fine-finishing range, suited for final sanding passes before primer or topcoat application. The blue ceramic aluminum oxide abrasive maintains a sharp cutting edge longer than conventional aluminum oxide, reducing disc consumption on production-volume jobs. The paper backing provides a flexible yet controlled cut on both flat and contoured panels.

Key Features

• 320 grit ceramic aluminum oxide abrasive for fine surface finishing
• 5-inch diameter with hook and loop backing for fast, tool-free disc changes
• C-weight paper backing balances flexibility and support on contoured surfaces
• Coated abrasive construction for consistent material removal and cut rate
• 50 discs per package suitable for production-volume sanding operations
• Rated for collision repair, marine, and commercial vehicle applications

Compatibility

Designed for use in collision repair, commercial and specialty vehicle, and marine applications. Compatible with 5-inch hook and loop random orbital and dual-action sanders.

Installation Notes

Installation and disc changes are performed by pressing the hook and loop backing firmly onto the sanding pad of the compatible tool. Ensure the pad and disc diameters match before use to avoid uneven wear or edge lifting. Inspect the disc for tears or loading before each use and replace as needed. Disc mounting and sanding operations do not require specialized tools but should follow standard shop safety practices including eye and respiratory protection.