Norton 66261119269 Flap Disc 40 Grit Type 29 4.5 Inch

Product Description

The NORTON 66261119269 is a Type 29 zirconia alumina flap disc designed for aggressive material removal on metal surfaces. Built on a fiberglass backing with an X-weight backing grade, this disc runs at a maximum of 13,000 RPM on a 4.5-inch angle grinder with a 7/8-inch arbor hole. The 40-grit coarse abrasive delivers fast stock removal and edge blending in one pass. It is part of the NORTON R822 series and is suited for metalworking fabrication shops, structural steel contractors, and maintenance tradespeople who need a reliable coated abrasive for heavy grinding work.

This flap disc is used on steels, stainless steel, and titanium in both shop and field environments. The Type 29 conical geometry increases surface contact area compared to a flat Type 27 disc, making it well suited for aggressive blending, weld grinding, and surface preparation on flat and contoured workpieces. It is a common consumable for welders, metal fabricators, pipefitters, and industrial maintenance techs working with angle grinders in production or job-site settings.

Key Features

• Zirconia alumina abrasive for fast, consistent stock removal on metal
• Type 29 conical profile improves contact angle on flat and contoured surfaces
• 40 grit coarse grade rated for aggressive grinding and weld blending
• Fiberglass backing with X-weight backing grade for rigidity under load
• Maximum rated speed of 13,000 RPM for use with standard 4.5-inch angle grinders
• NORTON R822 series with 7/8-inch arbor hole for direct arbor-mount attachment

Compatibility

Designed for use on steels, stainless steel, and titanium. Fits 4.5-inch angle grinders with a 7/8-inch arbor hole. Minimum order quantity is 5 units.

Installation Notes

Flap discs are mounted and replaced by qualified tradespeople following angle grinder safety procedures. Before mounting, confirm the grinder is rated at or above 13,000 RPM and that the guard is properly installed. Always power down and disconnect the grinder from its power source before changing discs. Follow ANSI B7.1 and the grinder manufacturer guidelines for proper disc mounting, flange torque, and personal protective equipment requirements.