Norton Abrasives PSA sanding disc rolls are ideal for fine-grit dry sanding, finishing, and micro-finishing tasks. They feature a special fibre-reinforced, flexible C-weight latex-saturated backing which improves the tear strength while maintaining its flexibility. These P-graded aluminium oxide abrasive rolls offer an increased service life, faster cut rates and a consistent finish, as compared to their industry counterparts. They are available in 280 and 320 grit sizes.