3M™ Cubitron™ II 775L Film-Backed Sanding Disc 3M™ The 3M™ Cubitron™ II 775L film-backed sanding disc delivers superior cutting performance with precision-shaped grain, enabling fast sanding and extended product life. Perfect for metalworking, surface preparation, and deburring in industries such as automotive repair, fabrication, and general manufacturing, it ensures consistent finishes while reducing operator fatigue. SEO keywords: sanding disc, metal sanding, 3M Cubitron, industrial abrasives. Learn more