3M 7100099218 Fibre Disc 782C 5 Inch 80 Grit Ceramic

Product Description

The 3M 7100099218 is the Fibre Disc 782C, a coated abrasive disc engineered for high-speed material removal on carbon steel and other demanding metal surfaces. Built around 3M Precision Shaped Grain ceramic abrasive technology, this 5-inch, 80-grit disc delivers significantly higher cut rates and longer service life than conventional aluminum oxide or zirconia fiber discs. A stiff fiber backing combined with a strong resin bond resists tearing and flexing under aggressive use. It is installed by metalworkers, welders, fabricators, and maintenance trades using a standard right-angle grinder fitted with a compatible disc pad and hub assembly.

The 782C is suited for heavy-duty metal fabrication tasks in both shop and field environments. Primary applications include weld removal, weld blending, surface preparation, edge chamfering, and beveling on carbon steel workpieces. The Precision Shaped Grain structure fractures along controlled planes during use, continuously exposing fresh cutting edges, which sustains cut rate throughout the disc life and reduces the frequency of disc changes on production work.

Key Features

• 3M Precision Shaped Grain ceramic abrasive delivers higher cut rates than conventional abrasive minerals
• 80-grit designation suited for aggressive stock removal, weld grinding, and beveling
• 5-inch diameter fits standard right-angle grinders with compatible pad assemblies
• Stiff fiber backing and strong resin bond resist tearing under heavy load
• Long-lasting abrasive mineral reduces disc changes and lowers cost per part
• 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 use on right-angle grinders accepting 5-inch fiber discs.

Installation Notes

Installation and disc changes are performed by metalworkers, fabricators, or maintenance trades. Always power down and disconnect or lock out the grinder before mounting or removing the disc. Inspect the disc for cracks or damage before each use and discard any damaged disc immediately. Follow applicable ANSI and OSHA abrasive wheel safety standards, including confirming the grinder RPM rating does not exceed the disc RPM rating.

Technical Specifications

• Disc Diameter: 5 inches
• Grit: 80
• Abrasive Type: Precision Shaped Ceramic
• Disc Construction: Coated, Fiber Backing
• Unit of Measure: Each
• Minimum Order Quantity: 100
• Package Weight: 4.597 pounds
• Package Length: 11.21 inches
• Package Width: 6.7 inches
• Package Height: 6.95 inches
• UPC: 076308896084

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100099218