{"product_id":"norton-66252849379-type-27-grinding-wheel-9in-20-grit","title":"Norton 66252849379 Type 27 Grinding Wheel 9in 20 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66252849379 is a Type 27 depressed-center grinding wheel designed for aggressive material removal on metal surfaces. At 9 inches in diameter and 0.25 inches thick, this coarse 20-grit wheel uses aluminum oxide abrasive bonded with a resinoid bond for durable, consistent stock removal. The reinforced construction handles the stresses of angle grinder use, and the semi-friable grain continuously fractures to expose fresh cutting edges during operation. Rated to 6,600 RPM, it fits grinders via a standard 0.625-inch arbor hole. This wheel is installed and used by metal fabricators, ironworkers, pipefitters, and welders across heavy fabrication and construction applications.\u003c\/p\u003e\u003cp\u003eThis wheel is suited for grinding welds, cleaning castings, beveling plate steel, and removing excess material from structural steel, pipe, and other ferrous workpieces. Its coarse 20-grit designation makes it appropriate for high-removal tasks where surface finish is secondary to cut rate. It is not intended for cutting operations. Typical use is on electric or pneumatic right-angle grinders in both shop and field environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType 27 depressed-center profile allows grinding at low angles without flange interference\u003c\/li\u003e\n\u003cli\u003eCoarse 20-grit aluminum oxide abrasive for fast, aggressive stock removal on ferrous metals\u003c\/li\u003e\n\u003cli\u003eResinoid bond with medium hardness (hardness code P) for balanced wear and cut retention\u003c\/li\u003e\n\u003cli\u003eReinforced fiberglass construction withstands high-stress grinding loads\u003c\/li\u003e\n\u003cli\u003eSemi-friable grain self-sharpens during use to maintain consistent cut rate\u003c\/li\u003e\n\u003cli\u003e6,600 RPM maximum speed rating for standard angle grinder compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use on angle grinders with a 0.625-inch arbor and a wheel guard rated for Type 27 wheels at or above 6,600 RPM. Verify guard and grinder compatibility before mounting.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation should be performed by qualified personnel familiar with abrasive wheel safety per ANSI B7.1 standards. Always power down and disconnect or unplug the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips before each use and do not use a damaged wheel. Ensure the grinder RPM rating meets or exceeds the wheel maximum RPM, and always use the appropriate Type 27 wheel guard during operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 27 Depressed Center\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Diameter\u003c\/strong\u003e: 9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Thickness\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Size\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Rating\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBond Type\u003c\/strong\u003e: Resinoid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriable\u003c\/strong\u003e: Semi-Friable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 6,600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type\u003c\/strong\u003e: Arbor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Color\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.78 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: 66252849379\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51542022619442,"sku":"66252849379","price":46.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b7d9b05b873ce54466d8e8ccffb5498d.jpg?v=1785889876","url":"https:\/\/voomisupply.com\/products\/norton-66252849379-type-27-grinding-wheel-9in-20-grit","provider":"Voomi Supply","version":"1.0","type":"link"}