{"product_id":"norton-666233-57278-resin-fiber-disc-50-grit-5x7-8-inches","title":"Norton 666233-57278 Resin Fiber Disc 50 Grit 5x7\/8 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 666233-57278 is a resin fiber disc engineered for heavy stock removal in demanding grinding and blending applications. Built on the Merit FX370 fiber backing, this disc uses aluminum oxide abrasive grain bonded with a durable resin system to deliver consistent cut rate and long service life. At 50 grit, it is suited for aggressive material removal on welds, castings, and fabricated steel components. The disc measures 5 inches in diameter with a 7\/8-inch arbor hole and is sold by the box. It is typically installed and used by metalworkers, fabricators, and maintenance technicians working with angle grinders in production or field environments.\u003c\/p\u003e\u003cp\u003eThis disc is designed for use on angle grinders in both shop and field settings. The 50-grit aluminum oxide abrasive performs well on ferrous metals, including mild steel and cast iron, where heavy stock removal or surface conditioning is the primary task. It is well suited to weld grinding, scale removal, and edge blending on fabricated assemblies. The FX370 fiber backing provides the stiffness needed to maintain disc geometry under load during extended grinding passes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e50-grit aluminum oxide abrasive for aggressive stock removal\u003c\/li\u003e\n\u003cli\u003eMerit FX370 fiber backing for rigidity and durability under load\u003c\/li\u003e\n\u003cli\u003eResin bond construction resists heat buildup during continuous use\u003c\/li\u003e\n\u003cli\u003e5-inch diameter with 7\/8-inch arbor hole fits standard angle grinders\u003c\/li\u003e\n\u003cli\u003eEconomically priced for high-volume grinding and blending tasks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit disc for standard 5-inch angle grinders accepting a 7\/8-inch arbor.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eResin fiber discs must be mounted on a matching backup pad rated for the disc diameter before use on an angle grinder. Verify the grinder RPM rating meets or exceeds the disc maximum RPM before operation. Always power down and disconnect or de-energize the grinder before changing discs. Operators should wear appropriate PPE including face shield and gloves in accordance with applicable ANSI grinding safety standards.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking\u003c\/strong\u003e: FX370 Resin Fiber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArbor Hole\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.65 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 1\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: 666233-57278\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51342927561010,"sku":"666233-57278","price":41.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310537539.jpg?v=1782010849","url":"https:\/\/voomisupply.com\/products\/norton-666233-57278-resin-fiber-disc-50-grit-5x7-8-inches","provider":"Voomi Supply","version":"1.0","type":"link"}