Abrasive Micro Finishing Film;3M imperial micro finishing film is different from conventional sandpapers and cloth backed abrasives.;A high strength polyester film backing is coated with premium, micron graded mineral particles that are electro statically oriented for greater cutting efficiency.;Resin bonded for increased durability. The result, an industry leading cutting abrasive that provides precise, consistently uniform, close tolerance finish.;Mineral: Aluminium Oxide;Sheet size A4;MMF = Micro Finishing Film;AB = Adhesive Backed;0.3mm thick backing;3M reference 268L;A micron is a unit of measure, equalling 0.001mm