{"product_id":"3m-7000044721-microfinishing-film-roll-20-micron","title":"3M 7000044721 Microfinishing Film Roll 20 Micron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe 3M 7000044721 Microfinishing Film Roll 372L is a precision abrasive roll designed for fine surface finishing on cylindrical components. It consists of aluminum oxide abrasive grains resin-bonded to a 5 mil polyester film backing, providing consistent cut and finish performance. The backing features a friction grip coating that reduces slippage during use. At 20 micron grade, this roll delivers a controlled, fine finish suitable for tight-tolerance applications. Machinists and finishing technicians use this product in production and repair environments where surface geometry must be maintained within strict parameters.\u003c\/p\u003e\n\u003cp\u003eThis microfinishing film roll is used in the precision finishing of cylindrical surfaces, including automotive camshafts and crankshafts. It is well-suited for lapping and microfinishing operations performed on cylindrical grinding machines and manual polishing fixtures. The 7-7\/8 inch width, 165 foot length, and 3 inch core accommodate standard production roll finishing equipment. It is applicable in automotive component manufacturing, engine rebuilding shops, and precision machine shops where controlled surface finish is a process requirement.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum oxide abrasive resin-bonded to a 5 mil polyester film backing for consistent performance\u003c\/li\u003e\n  \u003cli\u003e20 micron grade for fine, controlled surface finishing\u003c\/li\u003e\n  \u003cli\u003eFriction grip coating on backing reduces slippage during cylindrical finishing operations\u003c\/li\u003e\n  \u003cli\u003e7-7\/8 inch width and 3 inch core size fit standard roll finishing equipment\u003c\/li\u003e\n  \u003cli\u003e165 foot roll length reduces changeover frequency in production environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in roll microfinishing and lapping operations on cylindrical surfaces such as automotive camshafts and crankshafts. Fits equipment accepting a 3 inch core with rolls up to 7-7\/8 inches wide.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis product is installed and operated by machinists or finishing technicians using cylindrical microfinishing or lapping equipment. Ensure the machine is powered down and all rotating components are fully stopped before loading or unloading the roll. Verify that the core size and roll width are compatible with the equipment before mounting. Follow the equipment manufacturer's guidelines for feed rate, contact pressure, and coolant use to maintain finish consistency and avoid film damage.\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\u003eBacking\u003c\/strong\u003e: 5 mil Polyester Film\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacking Coating\u003c\/strong\u003e: Friction Grip\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: 20 Micron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoll Width\u003c\/strong\u003e: 7-7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoll Length\u003c\/strong\u003e: 165 feet\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCore Size\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Roll\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 50051111608567\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: 3M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7000044721\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51348014661938,"sku":"7000044721","price":632.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310524391.jpg?v=1782118070","url":"https:\/\/voomisupply.com\/products\/3m-7000044721-microfinishing-film-roll-20-micron","provider":"Voomi Supply","version":"1.0","type":"link"}