The vintage 3M Production Fre-Cut Paper Sheets are 80-D grit sandpaper measuring 3" x 8". These sandpaper sheets are ideal for manual surface conditioning and metalworking supplies. The 3M brand ensures quality and reliability in the abrasive material, making them a valuable addition to CNC, metalworking, and manufacturing processes. The 80-D grit sandpaper provides a medium level of abrasion, ideal for a variety of sanding tasks on various surfaces.