3M Hookit Discs 366L

The 3M™ Hookit™ Microfinishing Film Disc 366L, 40 Mic 3MIL, Type D, Config is designed to ensure consistent sanding results, high material removal rates, and maximum control in industrial applications. With its 40-micron grit, it enables efficient material removal without compromising surface quality. The robust 3MIL polyester backing ensures stability, dimensional stability, and even pressure distribution—even at high speeds.

The proven 3M™ Hookit™ hook-and-loop system makes attaching and changing the sanding discs particularly easy and time-saving. This allows different grits to be used flexibly to achieve optimal results in every processing phase. Thanks to the uniform grit distribution and high-quality resin bond, the disc delivers consistent sanding performance throughout its entire service life.

The 366L microfinishing film disc is ideal for pre- and intermediate sanding of metal, paint, plastic, and composite materials. Whether in the automotive industry, aerospace, or metalworking—this sanding disc offers a combination of precision, durability, and cost-effectiveness that professional users appreciate.