{"product_id":"3m-7000044859-diamond-lapping-film-668x-3-0-micron-psa","title":"3M 7000044859 Diamond Lapping Film 668X 3.0 Micron Psa","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe 3M 7000044859 is a pressure-sensitive adhesive (PSA) diamond lapping film designed for precision surface finishing on extremely hard materials. Built on a stable polyester film backing, it features precisely graded 3.0 micron diamond abrasive particles that deliver a consistent, repeatable finish from sheet to sheet. At 9 inches x 11 inches, each sheet provides a generous working surface suited to flat-lapping fixtures, backing plates, and hand-lapping applications. This film is used by machinists, optical technicians, toolmakers, and precision maintenance trades requiring tight surface finish control.\u003c\/p\u003e\n\u003cp\u003eThis lapping film is suited for finishing operations on hardened steel, ceramics, carbide, optical glass, and other hard substrates where conventional abrasives lose effectiveness. The PSA backing allows the sheet to adhere directly to a flat plate or lapping fixture, holding position during use without slippage. It is sold in a minimum quantity of 10 sheets per order, making it appropriate for shop stock and recurring maintenance programs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3.0 micron precisely graded diamond abrasive for tight, repeatable surface finish tolerances\u003c\/li\u003e\n  \u003cli\u003ePSA backing adheres to flat lapping plates or fixtures without separate adhesive\u003c\/li\u003e\n  \u003cli\u003ePolyester film substrate resists tearing and dimensional distortion during use\u003c\/li\u003e\n  \u003cli\u003e9 inches x 11 inches sheet size fits standard flat-lapping setups\u003c\/li\u003e\n  \u003cli\u003eEffective on extremely hard materials including carbide, ceramics, and hardened steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a PSA-backed alternative to the 661X series diamond lapping film, suited for flat-lapping plates and fixtures requiring a self-adhesive abrasive sheet in 3.0 micron grade.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSurface finishing with diamond lapping film is typically performed by machinists or precision maintenance technicians. Before applying the PSA sheet, clean and dry the lapping plate surface completely to ensure full adhesion. Peel the liner and press the sheet firmly onto a flat, rigid substrate before beginning the lapping stroke. Replace sheets when abrasive loading or glazing reduces cutting action, as continued use on a spent sheet can compromise finish quality.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Grade\u003c\/strong\u003e: 3.0 micron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Type\u003c\/strong\u003e: Diamond\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacking\u003c\/strong\u003e: Polyester film\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAttachment\u003c\/strong\u003e: Pressure-sensitive adhesive (PSA)\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\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Each\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00051111500606\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: 7000044859\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51347144278322,"sku":"7000044859","price":591.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310524111.jpg?v=1782098759","url":"https:\/\/voomisupply.com\/products\/3m-7000044859-diamond-lapping-film-668x-3-0-micron-psa","provider":"Voomi Supply","version":"1.0","type":"link"}