Norton 66261126560 Fiber Disc 80 Grit 5 in Zirconia Alumina

Product Description

The NORTON 66261126560 is a 5-inch zirconia alumina fiber disc from the F826P series, designed for aggressive material removal on metal, weld seams, and castings. The disc features an 80-grit medium-grade abrasive bonded with a resinoid bond to a rigid fiber backing, delivering consistent cut rate and durability through high-pressure grinding passes. It mounts via a 5/8-11 threaded arbor hole and is rated for a maximum of 13,000 RPM. Licensed HVAC techs, metalworkers, pipefitters, and fabricators working ferrous and non-ferrous stock will find this disc suited to prep and blending work where fast stock removal is the priority.

This fiber disc is used in industrial and commercial fabrication environments as well as field service applications involving pipe prep, structural steel, and weld cleanup. The 5-inch diameter fits standard angle grinder setups equipped with the appropriate back-up pad. Norton specifies use with the NORTON AVOS Speed-Lok Back-Up Pad for this disc, which should be matched accordingly on the grinder. It is packaged individually and sold in multiples of 10.

Key Features

• 80-grit zirconia alumina abrasive delivers medium-grade aggressive stock removal
• Resinoid bond locks abrasive grain to fiber backing for extended disc life under pressure
• 5/8-11 threaded arbor hole for secure mounting on standard angle grinders
• 13,000 RPM maximum speed rating for use on full-size angle grinders
• Blue disc color for quick identification on the job
• Designed for use with the NORTON AVOS Speed-Lok Back-Up Pad

Compatibility

Designed for use with the NORTON AVOS Speed-Lok Back-Up Pad. Fits angle grinders with a 5/8-11 threaded spindle accepting 5-inch fiber discs.

Installation Notes

Installation should be performed by a qualified operator following grinder and abrasive manufacturer guidelines. Ensure the grinder is unplugged or the power source is isolated before mounting or removing the disc. Verify the grinder spindle speed does not exceed the 13,000 RPM disc rating before operation. Always use the correct back-up pad size and type, and confirm the threaded arbor connection is fully seated before starting the tool.