Norton 66254491781 Flap Disc 80 Grit 6 Inch Type 29

Product Description

The NORTON 66254491781 is a Type 29 zirconia alumina flap disc designed for aggressive material removal and blending on metal surfaces. Built on a fiberglass backing plate, this 6-inch disc runs at up to 10,200 RPM and mounts via a standard 5/8-11 arbor attachment. The Type 29 conical geometry presents the abrasive cloth at an angle, increasing contact area and cut rate on flat and contoured workpieces. At 80 grit, it falls in the medium grade range — fast enough for weld blending and surface conditioning, fine enough to leave a consistent scratch pattern before finishing passes. Fabricators, welders, and metal finishing techs reach for this disc when a right-angle grinder is the tool and throughput matters.

This disc is suited for use in metal fabrication shops, structural steel work, and general manufacturing environments where weld seam removal, deburring, and surface preparation are routine tasks. The zirconia alumina abrasive self-sharpens during use, sustaining cut rate over the life of the disc on mild steel, stainless steel, and similar ferrous materials. It is sold individually, with a minimum order quantity of 10 units.

Key Features

• Type 29 conical design increases contact area for faster material removal on flat and contoured surfaces
• 80 grit medium grade — suitable for weld blending, deburring, and surface conditioning
• Zirconia alumina abrasive self-sharpens during use for sustained cut rate
• Fiberglass backing plate provides rigidity and durability under load
• 5/8-11 arbor hole fits standard right-angle grinders
• Rated to 10,200 RPM maximum operating speed

Compatibility

Designed for use on right-angle grinders equipped with a 5/8-11 arbor and capable of accepting a 6-inch Type 29 flap disc. Verify that the grinder's rated no-load RPM does not exceed the disc maximum of 10,200 RPM before mounting.

Installation Notes

Installation should be performed by a qualified operator familiar with angle grinder safety and ANSI B7.1 guidelines for abrasive wheel mounting. Inspect the disc for damage before each use and never operate above the marked maximum RPM. Secure the workpiece and ensure guards are in place before grinding. Do not use this disc on a grinder with a no-load speed rating that exceeds 10,200 RPM.