{"product_id":"norton-66252836977-type-12-grinding-wheel-6-in-60-grit","title":"Norton 66252836977 Type 12 Grinding Wheel 6 in 60 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66252836977 is a Type 12 vitrified aluminum oxide grinding wheel designed for precision tool grinding and reconditioning applications. The wheel measures 6 inches in diameter with a 1\/2-inch overall thickness and a 3\/8-inch face width, seating on a 1-1\/4-inch arbor hole. At 60 grit with a J hardness code and medium grade classification, it delivers consistent stock removal on tool steel and similar workpieces. Maximum operating speed is 4,140 RPM. The friable aluminum oxide abrasive fractures cleanly during use to expose fresh cutting edges, reducing heat buildup at the grind zone. Installed by tool and cutter grinder operators in machine shops and industrial maintenance environments.\u003c\/p\u003e\u003cp\u003eThis wheel is suited for tool and cutter grinder applications requiring a medium-grit, vitrified-bond abrasive. The Type 12 form factor makes it appropriate for grinding cutting tool faces, clearance angles, and similar precision profiles. Its white aluminum oxide construction is commonly applied to carbon steel, high-speed steel, and similar ferrous tool materials where thermal sensitivity is a concern. The non-porous structure maintains dimensional stability under repeated use at rated speeds.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType 12 wheel form for tool and cutter grinder use\u003c\/li\u003e\n\u003cli\u003e60 grit aluminum oxide abrasive, medium grade, J hardness code\u003c\/li\u003e\n\u003cli\u003eVitrified bond for dimensional stability and consistent cut\u003c\/li\u003e\n\u003cli\u003eFriable abrasive fractures to self-sharpen and limit heat buildup\u003c\/li\u003e\n\u003cli\u003e4,140 RPM maximum operating speed\u003c\/li\u003e\n\u003cli\u003eWhite wheel color for visual wear monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a replacement or consumable grinding wheel for Type 12 tool and cutter grinder spindles accepting a 1-1\/4-inch arbor hole and a 6-inch diameter wheel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eGrinding wheels must be installed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Power down and lock out the grinder before mounting or removing the wheel. Inspect the wheel for cracks or chips before installation and perform a ring test. Never exceed the rated maximum RPM of 4,140 and always use the appropriate guards.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Type\u003c\/strong\u003e: Type 12\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: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Thickness\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace Width\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Size\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 60\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 4,140\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Color\u003c\/strong\u003e: White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorous\u003c\/strong\u003e: Non-Porous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriable\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecifications\u003c\/strong\u003e: 38A60-JVBE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.603 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: 66252836977\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51542764650802,"sku":"66252836977","price":98.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a8b523cc6eff419ab15a9fbb6e8e2a52.jpg?v=1785906715","url":"https:\/\/voomisupply.com\/products\/norton-66252836977-type-12-grinding-wheel-6-in-60-grit","provider":"Voomi Supply","version":"1.0","type":"link"}