{"product_id":"norton-66243530393-type-11-grinding-wheel-80-grit","title":"Norton 66243530393 Type 11 Grinding Wheel 80 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66243530393 is a Type 11 vitrified aluminum oxide grinding wheel designed for precision tool grinding and sharpening applications. It measures 4 inches in diameter with a 1.5-inch overall thickness and a 0.25-inch face width. The wheel carries an 80-grit medium grade with a J hardness code, making it well suited for moderate stock removal on ferrous and non-ferrous tooling. The vitrified bond provides rigidity and open structure for consistent cutting action, and the friable abrasive grain breaks down during use to expose fresh cutting edges. Rated to a maximum of 5,730 RPM, this wheel fits standard bench grinders used in tool rooms, maintenance shops, and trade service environments.\u003c\/p\u003e\u003cp\u003eThis wheel is commonly used in tool-and-cutter grinding, drill bit resharpening, and general precision grinding tasks. Its 1.25-inch arbor hole and 3-inch hub diameter suit a range of bench and pedestal grinder spindles found in HVAC, plumbing, electrical, and general mechanical service shops. The white aluminum oxide composition is appropriate for grinding high-speed steel and similar hardened tool materials without excessive heat buildup at the cutting edge.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType 11 cup wheel profile for tool and cutter grinding applications\u003c\/li\u003e\n\u003cli\u003e80-grit aluminum oxide abrasive with J hardness and medium grade for controlled stock removal\u003c\/li\u003e\n\u003cli\u003eVitrified bond with friable grain for consistent, self-dressing cutting action\u003c\/li\u003e\n\u003cli\u003e5,730 maximum RPM rating for safe operation on standard bench and pedestal grinders\u003c\/li\u003e\n\u003cli\u003e1.25-inch arbor hole and 3-inch hub diameter for broad spindle compatibility\u003c\/li\u003e\n\u003cli\u003eWhite wheel color indicates pure aluminum oxide composition suitable for hardened tool steels\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a replacement or service grinding wheel for bench and pedestal grinders with a 1.25-inch arbor bore, commonly used in tool room and trade maintenance applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eGrinding wheel mounting and dressing must be performed by qualified personnel following ANSI B7.1 safety standards. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips before installation and perform a ring test. Never exceed the maximum RPM stamped on the wheel, and ensure the grinder guard is in place before operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBond Type\u003c\/strong\u003e: Vitrified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Thickness\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace Width\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Size\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub Diameter\u003c\/strong\u003e: 3 inches\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\u003eHardness Code\u003c\/strong\u003e: J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Color\u003c\/strong\u003e: White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 5,730\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriable\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Code\u003c\/strong\u003e: 38A80-JVBE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.804 pounds\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: 66243530393\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51540829274418,"sku":"66243530393","price":86.17,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/34977451020c8f7ddf8e509f285b7d0d.jpg?v=1785864402","url":"https:\/\/voomisupply.com\/products\/norton-66243530393-type-11-grinding-wheel-80-grit","provider":"Voomi Supply","version":"1.0","type":"link"}