This 3M™ Kut Disc is a 3 inch diameter and 36 grit. Grinding disk with built-in backing plate that screws onto Kut-Down™ Disc Adaptor, 3 inch, 05533. Cut down feature means that as discs wear, the edges can be trimmed to refresh them.
3M™ Kut Discs can be cut down for extended life.
20 discs/box