What is the difference between sandpaper with grit 80, 120, and 240?

Sandpaper with grit 80 is coarse and ideal for quickly removing material, such as paint or rust. Grit 120 is medium, perfect for smoothing surfaces after sanding with grit 80. Grit 240 is fine and suitable for polishing and finishing surfaces, giving you a smooth and sleek finish. Each grit type has its specific application, depending on the level of sanding needed.