3M 7100099277 Quick Change Fibre Disc 80 Grit 4.5 Inches

Product Description

The 3M 7100099277 is a Quick Change fibre disc engineered for high-speed material removal on hard-to-grind metals. Built with 3M Precision Shaped Grain, this 4.5-inch, 80-grit disc delivers faster cut rates and cooler grinding temperatures compared to conventional fibre discs. A built-in grinding aid actively reduces heat buildup, making it well suited for heat-sensitive alloys. Stiff fibre backing paired with a strong resin bond provides durability and tear resistance through demanding applications. Licensed trades and metalworking professionals install this disc for weld removal, blending, beveling, edge chamfering, and finish refinement work.

This disc is designed for use on stainless steel and high nickel alloys in both fabrication shop and field environments. Typical applications include weld grinding, bevel preparation, and surface blending where heat control and consistent cut rate are critical. The Quick Change mount system allows fast disc swaps without tools, reducing downtime during production or repair work. At 4.5 inches in diameter and 80 grit, it fits common right-angle grinder workflows used in industrial, structural, and process piping applications.

Key Features

• 3M Precision Shaped Grain provides higher cut rates and cooler grinding versus conventional fibre discs
• Built-in grinding aid minimizes heat buildup on heat-sensitive alloys such as high nickel grades
• Stiff fibre backing and strong resin bond resist tearing under heavy grinding loads
• Quick Change attachment system enables fast, tool-free disc replacement
• Effective for weld removal, beveling, edge chamfering, and surface blending
• Compatible with 3M disc pad face plates and hubs sold separately

Compatibility

Compatible with 3M disc pad face plates and hubs sold separately. Designed for Quick Change right-angle grinder setups used on stainless steel and high nickel alloy workpieces.

Installation Notes

Installation and operation should be performed by qualified personnel familiar with angle grinder safety practices. Verify that the grinder RPM rating meets or exceeds the disc RPM rating before mounting. Power down and disconnect the grinder from its power source before changing discs. Always use appropriate eye, face, and hand protection when operating abrasive discs, and ensure the work area is clear of flammable materials given the sparks produced during grinding.

Technical Specifications

• Disc Diameter: 4.5 inches
• Grit: 80
• Abrasive Type: Precision Shaped Grain
• Attachment Style: Quick Change
• Package Weight: 6.421 pounds
• Package Length: 21.59 inches
• Package Width: 6.7 inches
• Package Height: 6.95 inches
• UPC: 076308896510

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100099277