Norton 66261137455 Fiber Disc 7 in 36 Grit Zirconia Alumina

Product Description

The NORTON 66261137455 is a 7-inch zirconia alumina fiber disc designed for aggressive material removal in heavy grinding and blending applications. Part of the F826 Series, it carries a 36-grit very coarse grade with a resinoid bond and a fiber backing that holds up under sustained pressure and heat. The disc mounts via a threaded arbor hole with a 5/8-11 center hole thread size and is rated for a maximum of 8,600 RPM. It is intended for use with the Norton AVOS Speed-Lok Back-Up Pad. Licensed tradespeople and experienced fabricators working with angle grinders are the primary installers and users.

This disc is suited for weld blending, rust removal, and surface prep on steel and other ferrous metals in both residential and light commercial fabrication environments. The zirconia alumina abrasive delivers a self-sharpening cut that maintains stock removal rates over the life of the disc, making it a practical choice for production grinding tasks where downtime between disc changes matters. The blue disc color helps with quick visual identification on the shop floor or in a service van.

Key Features

• 7-inch disc diameter for broad surface coverage in a single pass
• 36-grit very coarse grade for fast, aggressive stock removal
• Zirconia alumina abrasive with resinoid bond for durability and consistent cut rate
• 5/8-11 threaded arbor hole attachment for secure, centered mounting
• Rated to 8,600 RPM for compatibility with standard angle grinders
• Compatible with Norton AVOS Speed-Lok Back-Up Pad for quick disc changes

Compatibility

Designed for use with the Norton AVOS Speed-Lok Back-Up Pad. The threaded arbor hole attachment accepts a standard 5/8-11 arbor as found on most 7-inch angle grinders.

Installation Notes

Installation and use should be performed by qualified personnel familiar with angle grinder safety requirements. Always confirm the grinder speed rating does not exceed the 8,600 RPM maximum before mounting the disc. Inspect the disc for cracks or damage before each use and never operate a damaged disc. Wear appropriate PPE including a face shield, gloves, and hearing protection during operation.