{"product_id":"norton-66252939530-surface-grinding-wheel-220-grit-7-in","title":"Norton 66252939530 Surface Grinding Wheel 220 Grit 7 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66252939530 is a Type 1 flat surface grinding wheel designed for precision stock removal and finish grinding on a variety of metallic workpieces. Built around an aluminum oxide abrasive in a vitrified bond matrix, this wheel delivers consistent cut rates and long service life. It measures 7 inches in diameter, 1\/4 inch thick, with a 1-1\/4 inch arbor hole, and is rated to a maximum of 3600 RPM. The 220 grit, very fine grade produces smooth surface finishes suited to finishing operations rather than aggressive material removal. At 0.8 pounds, it is lightweight enough for extended use on bench-mounted or CNC surface grinders.\u003c\/p\u003e\u003cp\u003eThis wheel is intended for use on soft carbon steels, tool steels, and super alloys in industrial and job-shop environments. It is compatible with surface grinders, cylindrical grinders, and CNC cutting tool machines. The series designation 38A220-MV identifies the aluminum oxide abrasive type, grit level, medium hardness rating (M), and vitrified bond. It is well suited to finishing passes where tight tolerances and surface finish quality are the priority over material removal rate.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e220 grit very fine aluminum oxide abrasive for smooth finish grinding\u003c\/li\u003e\n\u003cli\u003eVitrified bond provides rigidity and consistent wheel geometry throughout the wheel life\u003c\/li\u003e\n\u003cli\u003eSemi-friable abrasive grain self-sharpens during use, reducing glazing on tool steels and super alloys\u003c\/li\u003e\n\u003cli\u003eType 1 flat wheel profile with no recess, no taper — direct drop-in for standard arbor setups\u003c\/li\u003e\n\u003cli\u003eMedium hardness (M) rating balances wheel wear rate against cutting efficiency on a wide range of metals\u003c\/li\u003e\n\u003cli\u003eWhite wheel color aids visual inspection of wear and loading during service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for use with surface grinders, cylindrical grinders, and CNC cutting tool machines. Suitable for grinding soft carbon steels, tool steels, and super alloys per the manufacturer material application designation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eGrinding wheel installation and dressing should be performed by a qualified operator or machinist following applicable ANSI B11 and OSHA 29 CFR 1910.215 safety standards for abrasive wheel machinery. Always perform a ring test before mounting to check for cracks. Power down and lock out the machine before mounting or removing the wheel. Never exceed the 3600 RPM maximum speed rating stamped on the wheel.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Diameter\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Thickness\u003c\/strong\u003e: 1\/4 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: 220\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Very Fine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness Code\u003c\/strong\u003e: M (Medium)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 3600\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 Type\u003c\/strong\u003e: Type 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriability\u003c\/strong\u003e: Semi-Friable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorous\u003c\/strong\u003e: Non-Porous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Color\u003c\/strong\u003e: White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 38A Type 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecifications\u003c\/strong\u003e: 38A220-MV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Soft Carbon Steels, Tool Steels, Super Alloys\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.8 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: 66252939530\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51543722459442,"sku":"66252939530","price":113.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fc3d94855c0077b30b3bbc783cba30a2.jpg?v=1785921539","url":"https:\/\/voomisupply.com\/products\/norton-66252939530-surface-grinding-wheel-220-grit-7-in","provider":"Voomi Supply","version":"1.0","type":"link"}