【Coarse Grit】 - A set of sanding belts includes the most commonly used coarse grit types: P60 Particle Size P80 Particle Size P120 Grit X 2pcs P180 Grit X 2pcs P240 Grit X 2pcs P320 Grit X 2pcs 【Material】 - The sanding belt is made of durable, fully resin-bonded open-coated aluminum oxide grains, high-quality craftsmanship makes the grain uniform, providing fast and long-lasting sanding 【Connection】 - Precision designed two-way belt joint, diagonal connection eliminates splicing bumps, the belt sander belt interface is flat, strong and not easy to break under pressure. 【Usage】 - P60 and P80 grits: generally suitable for the first use of sanding work, with high sanding efficiency. - P120 grit and P180 grit: generally used in the middle of sanding work to remove burrs and make the surface smooth - P240 grit and P320 grit: generally used in the later stage of polishing work, so that the product can achieve the desired effect and make the surface smoother and smoother. Fits all 4" x 24"