3M 7100044891 Cubitrona Ii 775L Disc 5 Inch 120 Grit

Product Description

The 3M 7100044891 is a coated abrasive disc engineered for high-speed stock removal on a range of metal and composite substrates. Built on the Cubitrona II 775L platform, it uses 3M Precision Shaped Ceramic Grain — a triangular mineral geometry designed to slice through material rather than gouge or plow like conventional abrasive grains. The result is a disc that cuts significantly faster and outlasts standard abrasives. The film backing adds tear resistance and helps the disc hold its edge through aggressive grinding passes. At 5 inches in diameter and rated to 12,000 RPM, this disc suits fast-paced production and fabrication environments.

The 775L disc is suited for stock removal work on metal, stainless steel, aluminum, and similar substrates in industrial and manufacturing settings. The Stikita pressure-sensitive adhesive attachment system allows fast disc changes without tools, reducing downtime on the grinder. It is a practical choice for fabricators, welders, and metal finishers who need consistent cut rate and disc longevity across high-volume grinding operations.

Key Features

• 3M Precision Shaped Ceramic Grain slices material for faster cut rate and longer disc life compared to conventional abrasives
• Film backing provides greater tear resistance and edge retention during aggressive stock removal
• Stikita attachment system enables quick, tool-free disc changes
• 5-inch diameter rated to 12,000 RPM for compatibility with standard right-angle grinders
• 120 grit optimized for controlled stock removal and surface finishing
• Effective on a wide range of substrates including metals and composites

Compatibility

Designed as an OEM-style replacement for 5-inch Stikita-mount abrasive discs used on standard right-angle and random orbital grinders configured for PSA disc attachment.

Installation Notes

This disc is installed by a fabricator or grinder operator and requires no powered equipment shutdown beyond safe grinder handling practices. Confirm the tool spindle speed does not exceed the 12,000 RPM disc rating before mounting. Inspect the disc for damage before each use and discard any disc showing tears, delamination, or edge damage. Follow applicable ANSI B11 and OSHA grinding safety guidelines when operating abrasive discs.