3M™ 266X Lapping Film Disc 3M™ The 3M™ 266X lapping film disc is a precision abrasive designed for polishing and finishing delicate surfaces such as metals, ceramics, optical glass, and composites. Made with a polyester film backing, this disc provides exceptional durability and uniform distribution of abrasive grains, allowing for a smooth and consistent surface with remarkable precision. The 266X disc is particularly suited for applications requiring precise control and high-quality finishes, such as polishing electronic, optical, or industrial components. Its ability to minimize scratches and deliver consistent finishes makes it widely used in industries where surface quality is critical. Learn more