NORTON Q425 66261148911 Floor Sanding Disc, 20 in Dia, Coated, P100 Grit, Medium

Engineered with a sharp, 100% silicon carbide grain that's bonded to a durable polyester screen, the Q425 SC medium grit screen floor sanding disc provides excellent durability and longevity. The tough screen backing allows you to cut more aggressively at a faster cut rate than you can achieve with paper- and cloth-backed discs. These discs deliver economical and consistent performance on medium to hard woods and can be used on concrete as well. Reduce costs and waste when you use both sides of these discs and then rinse and reuse them until they're worn out.