4 x 21 Inches Aluminum Oxide Sanding Belts3 Each of 60 80 120 150 240 400 GritsPremium Work-Sharp SandpaperAbrasive File Sanding Belts

Specification: Abrasive Belt Size: 4-Inch x 21-Inch Grit Size: 3 Each of 60/ 80/ 120/ 150/ 240/ 400 Grits Material: Premium Open Coat Aluminum Oxide (A/O) Grain Package: 18 pieces                                                                                                                                                                                                                                Grit Selection Guide: 40 – 60 Grit: Sandpaper is fairly coarse - Heavy Sanding and Stripping 80 – 180 Grit: Sandpaper is fairly medium - Removing Tiny Imperfections 240 – 400 Grit: Delivering a Super Fine Smooth Finish