3M Hookit Discs 366L

The 3M™ Hookit™ Microfinishing Film Disc 366L is a high-performance sanding solution for maximum precision and consistent surface quality. With a grit size of 30 microns and a 3MIL polyester backing, it ensures a clean, controlled sanding pattern and consistent material removal throughout its entire service life.

Thanks to its sturdy film backing, the disc offers excellent dimensional stability and consistent sanding results—even in demanding applications. The Hookit™ attachment system allows for quick and easy disc changes, minimizing downtime and making work processes more efficient.

The 3M™ Microfinishing Film Disc 366L is ideal for the finest finishing work on metal, paint, wood, or composite materials. It is particularly used where a precise surface finish and high repeatability are required—such as in metalworking, toolmaking, or the automotive industry.

With its CE-compliant quality, precise grit distribution, and durable backing film, it delivers impressive durability, consistent performance, and professional results—even during continuous use.