{"product_id":"3m-7100037240-diamond-lapping-film-disc-5-inch-psa","title":"3M 7100037240 Diamond Lapping Film Disc 5 Inch Psa","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 3M 7100037240 is a PSA-backed diamond lapping film disc designed for precision finishing of extremely hard materials. Precisely graded diamond abrasive particles are coated onto a dimensionally stable polyester film substrate, producing a consistent, repeatable surface finish across every pass. The pressure-sensitive adhesive backing secures the disc to a flat platen without fasteners. This disc measures 5 inches in diameter and is part of the 3M 668X series, which is the PSA-backed counterpart to the 661X film. Technicians working with ceramics, carbides, optical glass, fiber optics, or precision metal components rely on this disc to achieve flat, uniform surface finishes with minimal edge rounding.\u003c\/p\u003e\u003cp\u003eThis lapping film disc is used in precision finishing and polishing applications across industries including fiber optic connector polishing, semiconductor work, tool and die, and hard-material component finishing. The 668X series is available in grades ranging from 0.10 to 30.0 micron, allowing the user to select the appropriate grit stage for their finishing sequence. The PSA format is suited for use on flat lapping plates and rotary lapping machines where quick disc changes improve throughput.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePSA backing secures disc to lapping platen without mechanical fasteners\u003c\/li\u003e\n\u003cli\u003ePrecisely graded diamond particles deliver a consistent, repeatable finish\u003c\/li\u003e\n\u003cli\u003eFast cut rate increases throughput in multi-stage finishing sequences\u003c\/li\u003e\n\u003cli\u003eFlat surface geometry with low edge rounding on finished workpieces\u003c\/li\u003e\n\u003cli\u003eLong abrasive life reduces the frequency of disc changes\u003c\/li\u003e\n\u003cli\u003ePolyester film backing provides dimensional stability under load\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use on flat lapping plates and rotary lapping machines that accept 5-inch PSA-backed abrasive discs. Part of the 3M 668X Diamond Lapping Film series, compatible with applications requiring graded diamond abrasives between 0.10 and 30.0 micron.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis disc is installed by a technician onto a clean, flat lapping platen surface. Before mounting, ensure the platen surface is free of debris or residual adhesive that could affect disc flatness. Peel the liner and apply firm, even pressure across the full disc face to prevent air pockets. Follow applicable workplace safety guidelines when handling diamond abrasive products, including eye protection.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking Type\u003c\/strong\u003e: PSA (Pressure-Sensitive Adhesive)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate\u003c\/strong\u003e: Polyester Film\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Grades\u003c\/strong\u003e: 0.10 to 30.0 micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Length\u003c\/strong\u003e: 7.71 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 6.88 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 4.7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00051111697382\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: 7100037240\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51344139977010,"sku":"7100037240","price":272.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310527484.jpg?v=1782030044","url":"https:\/\/voomisupply.com\/products\/3m-7100037240-diamond-lapping-film-disc-5-inch-psa","provider":"Voomi Supply","version":"1.0","type":"link"}