{"product_id":"norton-69957398012-ceramic-fiber-disc-7-inch-50-grit","title":"Norton 69957398012 Ceramic Fiber Disc 7 Inch 50 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 69957398012 is a 7-inch ceramic alumina fiber disc engineered for aggressive stock removal on metal, weld seams, and hard-to-grind alloys. Built on a rigid fiber backing with a resinoid bond, it accepts a standard 7\/8-inch arbor hole and runs at up to 8,600 RPM. The 50-grit coarse cut rating makes it a go-to choice for deburring, blending, and surface conditioning where speed of cut matters more than fine finish. Licensed grinding and metalworking professionals reach for this disc when production rates demand consistent abrasive performance over many passes.\u003c\/p\u003e\u003cp\u003eThis disc is suited for angle grinder applications in fabrication shops, structural steel work, pipeline welding prep, and heavy manufacturing environments. The ceramic alumina grain self-sharpens as it wears, sustaining cut rate longer than conventional aluminum oxide grains. The orange fiber backing provides dimensional stability under the flex and heat generated during grinding. It is sold individually and is appropriate for both intermittent touch-up grinding and extended production runs where disc changeovers need to stay predictable.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCeramic alumina abrasive grain for aggressive, self-sharpening cut on hard metals\u003c\/li\u003e\n\u003cli\u003e50-grit coarse grade rated for fast stock removal and weld blending\u003c\/li\u003e\n\u003cli\u003eRigid fiber backing with resinoid bond for stability at high RPM\u003c\/li\u003e\n\u003cli\u003e7\/8-inch arbor hole fits standard right-angle grinder spindles\u003c\/li\u003e\n\u003cli\u003eMaximum operating speed of 8,600 RPM\u003c\/li\u003e\n\u003cli\u003ePart of the R980 series, color-coded orange for quick grit identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement fiber disc for 7-inch right-angle grinders and disc grinders that accept a 7\/8-inch arbor hole attachment.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified grinding or fabrication personnel following ANSI B7.1 safety standards for abrasive wheel mounting. Always power down and disconnect the grinder before mounting or removing a disc. Inspect the fiber disc for cracks, warps, or damage before each use and never exceed the rated maximum RPM printed on the disc or listed on the package. Use the correct flange and backing pad specified for fiber disc grinding to ensure proper support across the full disc face.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Size\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Ceramic 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: Fiber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBond Type\u003c\/strong\u003e: Resinoid\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: 8,600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Color\u003c\/strong\u003e: Orange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R980\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 7.25 inches L x 5.25 inches W x 2 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.022 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage 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: 69957398012\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51538322751794,"sku":"69957398012","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d26df8e6479467cf2705501a908d8208.jpg?v=1785822985","url":"https:\/\/voomisupply.com\/products\/norton-69957398012-ceramic-fiber-disc-7-inch-50-grit","provider":"Voomi Supply","version":"1.0","type":"link"}