{"product_id":"norton-66261119267-flap-disc-80-grit-type-29-4-5-in","title":"Norton 66261119267 Flap Disc 80 Grit Type 29 4.5 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NORTON 66261119267 is a Type 29 flap disc designed for aggressive material removal and surface blending on metal workpieces. Built with zirconia alumina abrasive at 80 grit (medium grade), it delivers consistent cut rates and extended disc life compared to standard aluminum oxide options. The fiberglass backing plate provides rigid support for the overlapping abrasive flaps, allowing the disc to maintain contact angle and resist flex under load. Rated to 13,000 RPM, it mounts via a standard 7\/8 inch arbor hole and is compatible with 4.5 inch angle grinders. Fabricators, welders, pipefitters, and metalworkers rely on this disc for weld blending, deburring, and surface preparation tasks.\u003c\/p\u003e\n\u003cp\u003eThis flap disc is suited for use on mild steel, stainless steel, and other ferrous metals in fabrication shops, field welding environments, and manufacturing settings. The Type 29 conical design angles the abrasive surface toward the workpiece, concentrating grinding pressure and improving stock removal efficiency on flat and contoured surfaces. It is part of NORTON's R822 series. Installation requires a 4.5 inch angle grinder with a 7\/8 inch arbor. The disc is not trimmable and is sold individually.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eZirconia alumina abrasive for high cut rate and long service life on ferrous metals\u003c\/li\u003e\n  \u003cli\u003eType 29 conical design concentrates pressure for aggressive stock removal on flat and contoured surfaces\u003c\/li\u003e\n  \u003cli\u003e80 grit medium grade suitable for weld blending, deburring, and surface preparation\u003c\/li\u003e\n  \u003cli\u003eFiberglass backing plate provides rigid support and resists flex under load\u003c\/li\u003e\n  \u003cli\u003eRated to 13,000 RPM for use with standard 4.5 inch angle grinders\u003c\/li\u003e\n  \u003cli\u003e7\/8 inch arbor hole with arbor attachment type for secure mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with 4.5 inch angle grinders fitted with a 7\/8 inch arbor. Intended for grinding and blending applications on ferrous metal surfaces.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified tradespeople including fabricators, welders, and metalworkers. Always power down and disconnect the grinder from its power source before mounting or removing the disc. Confirm the grinder's rated RPM meets or does not exceed the disc's 13,000 RPM maximum before operation. Inspect the disc for damage before each use and do not operate a cracked or compromised disc.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter Hole Size\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlap Disc Type\u003c\/strong\u003e: Type 29\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 80\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Zirconia Alumina\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Type\u003c\/strong\u003e: Coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacking Material\u003c\/strong\u003e: Fiberglass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAttachment Type\u003c\/strong\u003e: Arbor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 13,000\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrimmable\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R822\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: NORTON\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66261119267\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51540989411634,"sku":"66261119267","price":33.21,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ffe377df2a20c1cab204de79528b4f1e.jpg?v=1785867020","url":"https:\/\/voomisupply.com\/products\/norton-66261119267-flap-disc-80-grit-type-29-4-5-in","provider":"Voomi Supply","version":"1.0","type":"link"}