3M™ 661X lapping film 3M™ The 3M™ 661X lapping film is designed to deliver exceptional finishing performance in various industrial environments. With its ultra-smooth surface, it provides precise and uniform finishes on materials such as metal, glass, and ceramics. Ideal for applications like polishing mechanical parts, preparing surfaces before painting, and lapping optical components, this film ensures high-quality results. Its compatibility with lapping and polishing systems makes it a preferred choice for manufacturing shops and laboratories Learn more