Norton 66261129722 Fiber Disc 4-1/2 in 80 Grit Zirconia Alumina

Product Description

The NORTON 66261129722 is a coated abrasive fiber disc designed for aggressive material removal on metal, weld seams, and other hard surfaces. Part of the F826P series, this disc measures 4-1/2 inches in diameter and runs at a maximum of 13,000 RPM. It features a zirconia alumina abrasive grain bonded with a resinoid bond to a fiber backing, delivering medium-grade cutting action at 80 grit. The threaded arbor hole accepts a 5/8-11 center hole thread for secure attachment. Fabricators, welders, and metalworkers use this disc with angle grinders during surface preparation, blending, and weld cleanup tasks.

This fiber disc is suited for use in fabrication shops, manufacturing environments, and field metalwork. The 80-grit medium grade makes it appropriate for stock removal and surface conditioning where aggressive cutting is needed without excessive surface damage. The blue fiber backing provides durability under load. It is designed for use with the Norton AVOS Speed-Lok Back-Up Pad, which provides proper support and vibration control during grinding operations. Sold individually with a minimum order quantity of 10 units.

Key Features

• 4-1/2-inch diameter zirconia alumina fiber disc rated at 13,000 RPM maximum
• 80 grit medium grade for aggressive stock removal and weld blending
• Resinoid bond with fiber backing for durability under sustained grinding loads
• 5/8-11 threaded arbor hole for direct attachment to compatible back-up pads
• Designed for use with the Norton AVOS Speed-Lok Back-Up Pad
• Blue disc color for quick grit identification in multi-disc environments

Compatibility

Designed for use with the Norton AVOS Speed-Lok Back-Up Pad. Requires a 5/8-11 threaded arbor attachment. Compatible with standard angle grinders accepting this arbor size and rated for the appropriate RPM.

Installation Notes

Install this disc only on a grinder rated at or above 13,000 RPM with a properly rated back-up pad. Power down and disconnect the grinder before mounting or removing the disc. Inspect the disc for cracks or damage before each use and do not use damaged discs. Follow applicable ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels.