3M 7100099279 Quick Change Fiber Disc 80 Grit 7 Inch

Product Description

The 3M 7100099279 is a quick-change coated fiber disc engineered for high-speed material removal on hard-to-grind metals. Built around 3M Precision Shaped Grain, the disc delivers faster cut rates and cooler grinding temperatures compared to conventional fiber discs. A grinding aid is integrated into the construction to further reduce heat buildup, making it well suited for heat-sensitive alloys. The disc runs at a maximum of 8600 RPM on a 7-inch diameter platform. Licensed trades and metal fabricators rely on this disc for weld removal, blending, and finish refinement where surface integrity matters.

This disc is intended for use on stainless steel and high nickel alloys in both shop and field fabrication environments. Typical applications include weld grinding, beveling, edge chamfering, and surface blending. The stiff fiber backing and strong resin bond resist tearing under heavy lateral load. The quick-change interface mates with compatible disc pad face plates and hubs, allowing fast swap-outs during continuous production work. It is sold individually and is appropriate for professional metalworking, maintenance, and repair operations.

Key Features

• 3M Precision Shaped Grain delivers higher cut rates and cooler grinding than conventional abrasive minerals
• Integrated grinding aid minimizes heat buildup on heat-sensitive alloys such as stainless steel and high nickel alloys
• Quick-change mounting for fast disc swaps with compatible 3M disc pad face plates and hubs (sold separately)
• Stiff fiber backing and strong resin bond provide durability and tear-resistance under heavy use
• 7-inch diameter, 80-grit coated construction suited for weld removal, beveling, and blending
• Rated to 8600 RPM for use with standard right-angle grinders

Compatibility

Compatible with 3M disc pad face plates and hubs designed for quick-change fiber disc systems (sold separately). Intended for use on stainless steel and high nickel alloys.

Installation Notes

Mounting and disc changes should be performed with the grinder powered off and unplugged. Verify that the grinder RPM rating meets or exceeds the disc maximum of 8600 RPM before use. Always install and inspect the disc guard per the tool manufacturer guidelines before operating. Wear appropriate PPE including face shield and gloves when grinding stainless steel or nickel alloys.

Technical Specifications

• Diameter: 7 inches
• Grit: 80
• Maximum Speed: 8600 RPM
• Abrasive Type: Coated, 3M Precision Shaped Grain
• Construction: Fiber backing with resin bond and grinding aid
• Unit of Measure: Each
• Minimum Order Quantity: 100
• Weight: 11.446 pounds
• Package Length: 21.59 inches
• Package Width: 8.7 inches
• Package Height: 8.95 inches
• UPC: 076308896534

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100099279