Norton 77696090183 Flap Disc 80 Grit Type 27 3 Inch

Product Description

The NORTON 77696090183 is a 3-inch Type 27 flap disc designed for aggressive material removal and blending on metal surfaces. Built with zirconia alumina abrasive at 80 grit (medium grade), it delivers consistent stock removal on steel, stainless steel, and other ferrous metals. The fiberglass backing provides rigidity and durability under load. Attachment is via a Quick-Change Type S mount, allowing fast disc swaps without tools. Rated to 30,000 RPM, this disc is suited for use with compatible small-angle grinders and rotary tools. Installed by metal fabricators, welders, pipefitters, and general tradespeople requiring a compact, high-speed grinding disc.

This flap disc is sized at 3 inches in diameter and is configured as a Type 27 flat profile, which positions the abrasive surface parallel to the grinding plane. This geometry is preferred for blending welds, deburring edges, and surface prep on flat or slightly contoured workpieces. The Quick-Change Type S attachment makes it a practical choice in production environments where multiple grits or disc types are cycled during a single job. It is packaged individually and sold in minimum order quantities of 10 units.

Key Features

• Zirconia alumina abrasive for durable, fast cutting on metal surfaces
• 80 grit medium grade suitable for weld blending and surface prep
• Type 27 flat profile for flush grinding on flat workpieces
• Quick-Change Type S attachment for tool-free disc changes
• Fiberglass backing for rigidity and resistance under load
• 30,000 RPM maximum rating for use with high-speed rotary tools

Compatibility

Designed for use with rotary tools and small-angle grinders that accept a Quick-Change Type S attachment and support a 3-inch disc diameter at speeds up to 30,000 RPM.

Installation Notes

This disc is installed by metalworkers, fabricators, and tradespeople using compatible rotary grinders with a Quick-Change Type S interface. Always verify the grinder's rated RPM meets or exceeds the disc's 30,000 RPM maximum before mounting. Ensure the tool is powered off and disconnected from its power source before changing discs. Wear appropriate PPE including eye protection and gloves during installation and operation.