Norton 66254468383 Fiber Disc 7 in 50 Grit Ceramic Alumina

Product Description

The NORTON 66254468383 is a 7-inch ceramic alumina fiber disc designed for aggressive material removal on metal, stainless steel, and other hard surfaces. Part of the F980 Series, it features a coarse 50-grit resinoid-bonded abrasive on a fiber backing for durability under high-pressure grinding. The threaded arbor hole accepts a 5/8-11 center hole fitting and is designed for use with the Norton AVOS Speed-Lok Back-Up Pad. Rated to 8,600 RPM, this disc is suited for weld removal, surface prep, and heavy stock removal tasks performed by metalworkers, fabricators, and maintenance technicians.

This disc is intended for angle grinder applications where consistent cut rate and disc longevity are required. The ceramic alumina abrasive self-sharpens during use, maintaining cut efficiency longer than standard aluminum oxide on demanding materials. The orange fiber backing and resinoid bond provide structural integrity during aggressive grinding passes. Sold individually, with a minimum order quantity of 10 units, it is a practical choice for shop stock or field service kits.

Key Features

• 7-inch disc diameter fits standard large angle grinders
• 50-grit coarse ceramic alumina abrasive for high material removal rates
• Threaded arbor hole with 5/8-11 thread for secure attachment to a threaded arbor
• 8,600 RPM maximum speed rating for safe high-speed operation
• Resinoid bond on fiber backing maintains disc integrity under load
• Designed for use with Norton AVOS Speed-Lok Back-Up Pad

Compatibility

Designed for use with the Norton AVOS Speed-Lok Back-Up Pad via a 5/8-11 threaded arbor hole attachment. Fits standard 7-inch angle grinders equipped with a threaded arbor spindle.

Installation Notes

Installation is performed by metalworkers and fabricators using a compatible 7-inch angle grinder. Always confirm the grinder spindle speed does not exceed the 8,600 RPM disc rating before operation. Power down and disconnect the grinder from its power source before mounting or removing the disc. Wear appropriate PPE including a face shield and grinding gloves during installation and use.