Norton 69957398007 Ceramic Fiber Disc 5 in 50 Grit

Product Description

The NORTON 69957398007 is a ceramic alumina fiber disc designed for aggressive material removal on metal, stainless steel, and other hard surfaces. Part of the R980 series, this 5-inch disc features a resinoid bond and fiber backing that together support high stock removal rates under sustained pressure. At 50 grit, it cuts in the coarse range, making it well suited for weld blending, surface conditioning, and edge grinding. The arbor hole attachment type fits standard right-angle grinders and disc grinders. The disc is rated to 10,000 RPM, keeping it compatible with most common angle grinder speeds. Weight is 0.02 pounds per disc.

This fiber disc is used in metalworking, fabrication, and maintenance applications where fast, consistent cutting action is needed. It is a single-pack disc, making it a practical choice for spot purchases or for evaluating the R980 series before committing to bulk quantities. Typical users include welders, metal fabricators, pipefitters, and maintenance technicians working on structural steel, weld seams, or cast iron surfaces. The orange disc color is characteristic of the R980 ceramic line and helps identify disc type at a glance on the shop floor.

Key Features

• Ceramic alumina abrasive delivers fast cut rates and extended disc life compared to standard aluminum oxide
• 50 grit coarse grade for aggressive stock removal and weld blending
• Resinoid bond with fiber backing provides durability under high pressure and heat
• Arbor hole attachment fits standard right-angle and disc grinders
• 10,000 RPM maximum speed rating compatible with most common angle grinder outputs
• Single-pack quantity for individual job or evaluation use

Compatibility

Designed for use with standard right-angle grinders accepting a 5-inch disc with a 7/8-inch arbor hole attachment. Fits grinders with a maximum speed rating at or below 10,000 RPM.

Installation Notes

Fiber discs are installed and serviced by welders, metal fabricators, and maintenance technicians using standard right-angle grinders. Always power down and disconnect the grinder before mounting or removing a disc. Confirm the grinder speed rating does not exceed the 10,000 RPM maximum marked on the disc. Inspect the disc for cracks or damage before each use and never use a damaged disc.