Norton 69957398009 Fiber Disc 80 Grit 5 in Ceramic

Product Description

The NORTON 69957398009 is a 5-inch ceramic alumina fiber disc engineered for aggressive material removal on metal, welds, and fabricated surfaces. Part of the R980 series, it runs on a resinoid bond over a fiber backing, delivering consistent cut rates under heavy-load grinding conditions. The disc seats on a standard 7/8-inch arbor hole and is rated to 10,000 RPM. At 80 grit, it falls in the medium grade range, making it well suited for stock removal, weld blending, and surface prep before finishing passes. It is a coated abrasive product intended for use with angle grinders and disc grinders in professional shop and field environments.

This disc is used in metal fabrication, structural steel work, maintenance and repair operations, and general industrial grinding applications. It is appropriate for both shop bench work and on-site fieldwork where a portable angle grinder is used. The orange disc color is characteristic of the R980 ceramic alumina series. Sold individually, it fits standard 5-inch disc pads with a 7/8-inch arbor mount.

Key Features

• Ceramic alumina abrasive material for high cut rate and extended disc life
• 80 grit medium grade for stock removal and weld blending
• Resinoid bond provides durability under heavy grinding loads
• Fiber backing supports aggressive pressure without disc flex
• 7/8-inch arbor hole fits standard 5-inch disc backing pads
• Rated to 10,000 RPM for use with common angle grinders

Compatibility

Designed as a coated abrasive replacement disc for standard 5-inch angle grinders and disc grinders fitted with a 7/8-inch arbor backing pad.

Installation Notes

Fiber discs are installed and serviced by metalworkers, fabricators, and maintenance technicians using standard angle grinders. Always confirm the grinder's rated RPM meets or exceeds the disc's 10,000 RPM maximum before mounting. Inspect the backing pad for wear or damage before installing a new disc. Wear appropriate PPE including a face shield and gloves when operating grinding equipment.