{"product_id":"norton-77696090084-flap-disc-80-grit-4-5-in-type-27","title":"Norton 77696090084 Flap Disc 80 Grit 4.5 in Type 27","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NORTON 77696090084 is a Type 27 zirconia alumina flap disc engineered for aggressive grinding and blending on steel and ferrous metals. Measuring 4.5 inches in diameter with a 7\/8-inch arbor hole, it runs at a maximum of 13,300 RPM on a standard angle grinder. The disc features a fiberglass backing plate for rigidity and stability under load, and the high-density flap construction of the R860 series delivers consistent stock removal with a medium-coarse finish across the work surface. Fabricators, welders, and metal finishing techs reach for this disc when they need reliable cut rate on structural steel, weld seams, and plate work.\u003c\/p\u003e\n\u003cp\u003eThis flap disc is suited for light fabrication shops and heavy industrial settings alike. Its Type 27 flat-profile design sits flush against the workpiece, making it effective for flat surface grinding, weld blending, and edge work on steel plate and tube. The 80-grit zirconia alumina abrasive cuts fast and self-sharpens as it wears, reducing the need for frequent disc changes during extended runs. Metal fabricators and ironworkers will find this disc fits the common 4.5-inch angle grinder platforms used daily on structural and sheet metal applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eType 27 flat profile for flush surface grinding and weld blending\u003c\/li\u003e\n  \u003cli\u003e80-grit zirconia alumina abrasive for fast, self-sharpening stock removal\u003c\/li\u003e\n  \u003cli\u003eFiberglass backing provides rigidity and resistance to flex under load\u003c\/li\u003e\n  \u003cli\u003eHigh-density R860 series flap construction for extended disc life\u003c\/li\u003e\n  \u003cli\u003eRated to 13,300 RPM for use on standard 4.5-inch angle grinders\u003c\/li\u003e\n  \u003cli\u003e7\/8-inch arbor hole fits the most common angle grinder arbor size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on 4.5-inch angle grinders with a 7\/8-inch arbor, rated for steel and ferrous metal grinding applications at up to 13,300 RPM.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and disc changes should be performed by the grinder operator with the tool fully powered down and unplugged. Verify the grinder's rated RPM meets or exceeds the disc's 13,300 RPM maximum before mounting. Inspect the disc for cracks or damage before each use and never exceed the maximum rated speed. Personal protective equipment including a face shield and gloves is standard practice when operating angle grinders.\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 27\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 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\u003eSeries\u003c\/strong\u003e: R860\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Color\u003c\/strong\u003e: Blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 pounds\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: 77696090084\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51691571249458,"sku":"77696090084","price":154.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/42dedfe3358658d4e934dfc25fec4f99.jpg?v=1788287153","url":"https:\/\/voomisupply.com\/products\/norton-77696090084-flap-disc-80-grit-4-5-in-type-27","provider":"Voomi Supply","version":"1.0","type":"link"}