{"product_id":"norton-66243528825-internal-grinding-wheel-60-grit-type-1","title":"Norton 66243528825 Internal Grinding Wheel 60 Grit Type 1","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NORTON 66243528825 is a Type 1 internal grinding wheel designed for precision bore and internal diameter grinding applications. Built with aluminum oxide abrasive and a vitrified bond, it delivers consistent stock removal and a controlled cut on ferrous metals and tool steels. The wheel measures 3 inches in diameter, 1\/2 inch thick, with a 3\/8-inch arbor hole, and is rated to a maximum of 10,825 RPM. At medium grade with K hardness, it suits general-purpose internal grinding where surface finish and dimensional accuracy matter. Weighing 0.7 pounds, it is a direct mount wheel with no recess. Machinists, tool grinders, and industrial maintenance professionals are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis wheel is suited for internal grinding operations on cylindrical bores, die cavities, and similar features in both production and job-shop environments. The aluminum oxide abrasive performs reliably on carbon steel, alloy steel, and hardened tool steel workpieces. The vitrified bond provides rigidity and coolant compatibility, making it appropriate for wet or dry grinding setups on standard internal grinding machines. Its compact 3-inch diameter fits tooling configurations common in bench and pedestal internal grinding spindles.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum oxide abrasive for consistent cut on ferrous and tool steel workpieces\u003c\/li\u003e\n  \u003cli\u003eVitrified bond construction for rigidity and coolant resistance\u003c\/li\u003e\n  \u003cli\u003eMedium grade, K hardness rating for controlled stock removal and finish\u003c\/li\u003e\n  \u003cli\u003eRated to 10,825 RPM maximum operating speed\u003c\/li\u003e\n  \u003cli\u003eType 1 straight wheel profile with no recess for straightforward mounting\u003c\/li\u003e\n  \u003cli\u003eCompact 3 inches diameter by 1\/2 inch thick form factor for internal grinding spindles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use Type 1 internal grinding wheel for standard internal grinding machines accepting a 3\/8-inch arbor hole and a 3-inch diameter wheel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or grinding machine operator following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinding machine before mounting or removing the wheel. Inspect the wheel for cracks or chips before installation and perform a ring test per ANSI guidelines. Never exceed the rated maximum RPM of 10,825, and ensure the machine spindle speed is verified before operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\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: 60\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness Rating\u003c\/strong\u003e: K (Medium)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBond Type\u003c\/strong\u003e: Vitrified\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 10,825\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Diameter\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Thickness\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArbor Hole Diameter\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecess Type\u003c\/strong\u003e: No Recess\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Color\u003c\/strong\u003e: Gray\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.7 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: 66243528825\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51542077047090,"sku":"66243528825","price":26.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6537e10457510d15f56a1f5d9f747555.jpg?v=1785891299","url":"https:\/\/voomisupply.com\/products\/norton-66243528825-internal-grinding-wheel-60-grit-type-1","provider":"Voomi Supply","version":"1.0","type":"link"}