6'' Blue Siafast Discs Paper 36 Grit 50 Pcs Per Boxes Professional-grade sanding discs engineered for aggressive material removal on wood, composite, and painted surfaces. These 36-grit paper discs deliver rapid stock reduction and surface preparation, ideal for initial sanding stages in flooring installation and refinishing projects. The durable paper backing withstands high-speed orbital sanders, while the open-coat design minimizes clogging for extended disc life. Each box contains 50 discs, providing substantial coverage for commercial and residential applications. Siafast's proven abrasive technology ensures consistent cutting performance and superior finish quality, making these discs the preferred choice for professional contractors and flooring specialists.