3M™ Hookit™ Film Disc 266L is a film backed, micron graded aluminium oxide disc with a fre-cut anti-loading coating. Our discs can be used to give a fast, precise and consistent cut with very good finish.Get a fast, precise and consistent cut with a very good finish when using 3M™ Hookit™ Film Disc 266L. Our micron graded aluminium oxide discs are made with a film backing, and a fre-cut anti-loading coating.They’re ideally used for sanding and finishing on composites, gel coats, fibreglass, and other solid surface materials.