Sanding discs are a staple in just about any shop. We stock just about every grit in the most popular configurations. Most 5" random orbit sanders take a 8 hole disc, but older Porter Cable sanders will use a 5 hole. Almost all 6" sanders use a 6 hole disc. These papers are available in envelopes of 10 or boxes of 100 discs. Festool sanders, both 5" and 6" have their own unique pattern, which is only available in boxes of 100.