{"product_id":"3m-7000000257-diamond-lapping-film-15-0-micron-8x50-ft","title":"3M 7000000257 Diamond Lapping Film 15.0 Micron 8x50 Ft","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 3M 7000000257 is a diamond lapping film supplied in roll form, used for precision surface finishing and material removal on extremely hard substrates. The film consists of precisely graded diamond abrasive particles coated onto a dimensionally stable polyester film backing. At 15.0 micron grit size, this grade sits in the mid-range of the available lineup and is suited for controlled stock removal before moving to finer finishing passes. The roll measures 8 inches wide by 50 feet long with a 3-inch core, making it compatible with standard roll-fed lapping and polishing equipment. Finished weight is 3.6 pounds. Technicians working with ceramics, carbide, hardened steel, optical components, or fiber optic ferrules rely on this film where consistent, repeatable surface finish is required.\u003c\/p\u003e\u003cp\u003eThis lapping film is used in precision grinding, polishing, and finishing applications across industries that demand tight surface-finish tolerances. Typical applications include tool and die shops, fiber optic connector polishing, semiconductor component finishing, and precision machining environments. The 15.0 micron grade is commonly used as an intermediate stock-removal step in a multi-stage finishing sequence. It is suitable for use on bench lapping fixtures, rotary polishing machines, or hand lapping plates where film stock is fed from a roll format.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecisely graded diamond particles for consistent, repeatable material removal\u003c\/li\u003e\n\u003cli\u003e15.0 micron abrasive grade for intermediate lapping and stock removal\u003c\/li\u003e\n\u003cli\u003ePolyester film backing provides dimensional stability during use\u003c\/li\u003e\n\u003cli\u003eRoll format: 8 inches wide x 50 feet long on a 3-inch core\u003c\/li\u003e\n\u003cli\u003eEffective on extremely hard materials including carbide, ceramic, and hardened steel\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple grades ranging from 0.10 to 30.0 micron for full finishing sequences\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard roll-fed lapping, polishing, and surface-finishing equipment that accepts 8-inch wide film stock on a 3-inch core. Verify equipment roll width and core diameter before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of lapping film should be performed by qualified technicians familiar with precision surface-finishing equipment and procedures. Ensure the lapping machine or fixture is powered down and fully stopped before loading or advancing film stock. Keep the film surface free of contamination — oils, debris, or damaged sections will affect finish consistency. Follow the equipment manufacturer's feed and tension specifications when loading the roll.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Grade\u003c\/strong\u003e: 15.0 micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Type\u003c\/strong\u003e: Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking Material\u003c\/strong\u003e: Polyester film\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoll Width\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoll Length\u003c\/strong\u003e: 50 feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Diameter\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\u003eWeight\u003c\/strong\u003e: 3.6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00051111698808\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 7000000257\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51346809127218,"sku":"7000000257","price":2945.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310527441.jpg?v=1782091110","url":"https:\/\/voomisupply.com\/products\/3m-7000000257-diamond-lapping-film-15-0-micron-8x50-ft","provider":"Voomi Supply","version":"1.0","type":"link"}