3M 7100214887 Abrasive Disc 4 Inch 80 Grit Cubitron Ii 775L

Product Description

The 3M 7100214887 is the Cubitron II 775L coated abrasive disc, built around 3M Precision Shaped Grain technology. The triangular ceramic mineral is engineered to slice through material rather than plow or gouge the way conventional abrasive grains do. That cutting action delivers removal rates up to 2x faster than standard abrasives and service life up to 6x longer. The disc ships in a 4-inch diameter, 80-grit configuration with a film backing that resists tearing and holds its edge through aggressive stock removal work. The Stikitit pressure-sensitive adhesive attachment system allows fast disc swaps without tools.

This disc is suited to metal fabrication, auto body, and general manufacturing environments where high stock removal is the primary goal. The film backing and Precision Shaped Grain combination make it effective across a wide range of substrates including steel, stainless steel, and aluminum. Typical users include metal fabricators, automotive body technicians, and production grinding operators running random orbital or disc sanders. The 80-grit grade positions it for initial material removal and surface leveling before finishing steps.

Key Features

• 3M Precision Shaped Grain cuts up to 2x faster than conventional abrasives
• Ceramic grain service life up to 6x longer than conventional abrasives
• Film backing provides greater tear resistance and edge retention over paper-backed alternatives
• Stikitit attachment system enables tool-free disc changes for faster workflow
• Optimized for stock removal across metal and mixed-substrate applications

Compatibility

Designed for use on random orbital disc sanders and disc grinders that accept 4-inch Stikitit pressure-sensitive adhesive backed discs.

Installation Notes

Installation is performed by pressing the PSA-backed disc firmly onto a clean, dry 4-inch Stikitit backup pad. Ensure the backup pad surface is free of debris or dried adhesive before mounting a new disc. Always confirm the tool is powered off and unplugged before changing discs. Use appropriate eye and respiratory protection when grinding, in accordance with applicable OSHA and shop safety requirements.