3M™ Cubitron™ II 775L Fine Grade Abrasive Disc Takes on the Competition See how the high-performance 3M™ Cubitron™ II Disc 775L with revolutionary Precision-Shaped Grain performs against 3 competitor discs in a primer sanding simulation. To learn more about 3M™ Cubitron™ II Film Disc 775L, visit: https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Cubitron-II-Hookit-Clean-Sanding-Film-Disc-775L/?N=5002385+3293218950&rt=rud&utm_term=sibg-asd-gi-en_us-eng-775l-osm-yt-primertest-na-aug20-na