{"product_id":"norton-66623399204-flap-disc-4-1-2-in-24-grit-type-29","title":"Norton 66623399204 Flap Disc 4-1\/2 in 24 Grit Type 29","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66623399204 is a Type 29 zirconia alumina flap disc engineered for aggressive material removal on steel and ferrous metals. At 4-1\/2 inches in diameter with a 7\/8-inch arbor hole, this disc fits standard right-angle grinders used daily in fabrication, welding, and metalworking. The 24-grit very coarse abrasive cuts fast through weld seams, mill scale, and heavy surface stock. A fiberglass backing plate provides rigidity and supports the angled flap geometry of the Type 29 profile, which concentrates grinding pressure for high-rate material removal. Rated at 13,300 RPM maximum, it is suited for sustained heavy grinding tasks.\u003c\/p\u003e\u003cp\u003eThis disc is intended for use on steels in industrial and commercial applications. It fits common 4-1\/2-inch angle grinders used by metal fabricators, structural welders, ironworkers, and pipe fitters. The Type 29 conical flap configuration works well on flat and contoured surfaces where aggressive stock removal is the priority. The R884P series disc in blue backing is a recognized choice for production grinding environments where disc changeover and consistent cut rate matter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType 29 conical flap geometry for aggressive, high-pressure grinding on flat and contoured surfaces\u003c\/li\u003e\n\u003cli\u003e24-grit very coarse zirconia alumina abrasive for fast stock removal on steel\u003c\/li\u003e\n\u003cli\u003eFiberglass backing provides rigid support and durability under sustained load\u003c\/li\u003e\n\u003cli\u003e13,300 RPM maximum speed rating fits standard 4-1\/2-inch right-angle grinders\u003c\/li\u003e\n\u003cli\u003e7\/8-inch arbor hole for direct mount on common grinder spindles\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.24 pounds for reduced operator fatigue during extended use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use on steels with standard 4-1\/2-inch right-angle grinders accepting a 7\/8-inch arbor hole attachment.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eVerify the grinder's no-load RPM rating does not exceed 13,300 RPM before mounting this disc. Power down and disconnect the grinder from its power source before changing discs. Inspect the disc for cracks or damage before each use and do not mount a damaged disc. Wear appropriate PPE including a face shield, gloves, and hearing protection when operating angle grinders, per applicable ANSI and OSHA guidelines.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 4-1\/2 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: 24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Very Coarse\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 Hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 13,300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Steels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Color\u003c\/strong\u003e: Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R884P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.24 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 4.5 inches x 4.5 inches x 0.88 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 66623399204\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51541438529842,"sku":"66623399204","price":17.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ede27f8dd60b7d867ffc5d75daba0585.jpg?v=1785876148","url":"https:\/\/voomisupply.com\/products\/norton-66623399204-flap-disc-4-1-2-in-24-grit-type-29","provider":"Voomi Supply","version":"1.0","type":"link"}