Norton 66261183496 Flap Disc 7in 60 Grit Ceramic Type 29

Product Description

The NORTON 66261183496 is a Type 29 ceramic flap disc designed for aggressive grinding and blending on metal surfaces. Built around a 7-inch diameter with a 7/8-inch arbor hole, this disc runs at a maximum of 8,500 RPM on standard angle grinders. The ceramic abrasive grain is medium grade at 60 grit, making it well suited for stock removal, weld cleanup, and surface conditioning where a coated abrasive is preferred over a bonded wheel. The fiberglass backing plate provides rigidity while keeping weight manageable for extended use. The R980 series designation identifies this as a professional-grade coated abrasive product from NORTON.

This flap disc is used in fabrication shops, construction sites, and maintenance environments where metal grinding, blending, and finishing are routine tasks. The Type 29 conical geometry positions the abrasive at an angle to the workpiece, delivering higher material removal rates compared to flat Type 27 discs. It is suited for use on structural steel, stainless steel, cast iron, and hard alloys. Licensed tradespeople including ironworkers, pipefitters, and sheet metal fabricators commonly specify ceramic flap discs for high-heat applications where aluminum oxide grain would break down faster.

Key Features

• Ceramic abrasive grain for extended cut life under high heat and pressure
• Type 29 conical profile increases contact angle for aggressive stock removal
• 60 grit medium grade balances material removal with surface finish
• Fiberglass backing plate resists flex and supports consistent grain presentation
• 7/8-inch arbor hole fits standard angle grinder spindles directly
• 8,500 RPM maximum speed rating for 7-inch grinders

Compatibility

Designed for use with 7-inch angle grinders accepting a 7/8-inch arbor attachment. The R980 series Type 29 geometry is a standard configuration compatible with grinders from most major tool manufacturers that accommodate 7-inch coated abrasive flap discs.

Installation Notes

Installation is performed by a qualified operator or trades professional familiar with angle grinder safety. Verify the grinder spindle speed does not exceed the 8,500 RPM maximum rating marked on the disc before mounting. Secure the arbor nut with the appropriate spanner wrench and confirm the disc is fully seated before powering on. Always use the appropriate guard, eye protection, and face shield per ANSI B7.1 and applicable workplace safety codes.