{"product_id":"3m-7000044858-diamond-lapping-film-663x-45-micron-9x11-in","title":"3M 7000044858 Diamond Lapping Film 663X 45 Micron 9x11 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 3M 7000044858 is a diamond lapping film sheet used for precision surface finishing and polishing of hard materials including ceramics, carbide, optical components, and hardened steel. Sold in a 10-sheet pack, each sheet measures 9 inches x 11 inches and carries a 45-micron diamond abrasive coating bonded to a polyester film backing. The 663X designation identifies the film series, while the Type P classification indicates a pressure-sensitive or specific backing type. This film is used where tight surface finish tolerances are required and conventional abrasives lose cutting efficiency on hard substrates. Machinists, tool-and-die makers, optical technicians, and precision maintenance professionals are the primary installers and users.\u003c\/p\u003e\u003cp\u003eDiamond lapping film in the 45-micron grade is suited for stock removal on the coarser end of the lapping spectrum before stepping down through finer grits. Common applications include lapping fiber optic connectors, precision flat lapping of carbide inserts, polishing ceramic seals, and reconditioning hardened tooling surfaces. The 9-inch x 11-inch sheet size is compatible with hand lapping fixtures, flat lapping plates, and backing pads used in bench or field finishing operations. Packaging of 10 sheets per pack and 100 sheets per case supports both single-job and high-volume shop use.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e45-micron diamond abrasive for aggressive stock removal on hard substrates\u003c\/li\u003e\n\u003cli\u003e9 inches x 11 inches sheet size fits standard lapping fixtures and backing pads\u003c\/li\u003e\n\u003cli\u003e663X film series engineered for consistent cut rate and long abrasive life\u003c\/li\u003e\n\u003cli\u003ePolyester film backing maintains dimensional stability under lapping pressure\u003c\/li\u003e\n\u003cli\u003eSold in 10-sheet packs with 100-sheet case quantity available\u003c\/li\u003e\n\u003cli\u003eSuitable for ceramics, carbide, optical glass, and hardened steel finishing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with flat lapping plates, hand lapping fixtures, and backing pads that accept standard 9-inch x 11-inch sheet abrasives in precision surface finishing applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eDiamond lapping film is typically used by machinists, optical technicians, and precision maintenance professionals working on hard-surface finishing tasks. Secure the sheet flat against a lapping plate or backing surface before use to prevent slipping and uneven material removal. Keep the work surface and film clean of contamination during lapping to avoid scratching. Follow the workpiece manufacturer or job specification for grit sequence when stepping through multiple micron grades.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Series\u003c\/strong\u003e: 663X\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Grade\u003c\/strong\u003e: 45 Micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheet Size\u003c\/strong\u003e: 9 inches x 11 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity\u003c\/strong\u003e: 10 sheets per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Quantity\u003c\/strong\u003e: 100 sheets per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00051135645703\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: 7000044858\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51346846548274,"sku":"7000044858","price":859.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310524110.jpg?v=1782092218","url":"https:\/\/voomisupply.com\/products\/3m-7000044858-diamond-lapping-film-663x-45-micron-9x11-in","provider":"Voomi Supply","version":"1.0","type":"link"}