5 inch 49 hole short hook adhesive disc polishing pad

① The 49 holes are beneficial for heat dissipation and chip removal during the grinding process, preventing the grinding disc from deforming or being damaged due to overheating. At the same time, they can also allow the grinding chips to be discharged in a timely manner to avoid blockage, thus ensuring the grinding effect and efficiency.② The PU material has good elasticity and wear resistance, which can provide appropriate buffering during the grinding process, making the grinding more uniform and smooth, and reducing the damage to the surface of the workpiece. The blue cover design can further protect the edge part of the grinding disc and extend its service life.③ The self-adhesive sandpaper disc with a short hook design enables quick and convenient replacement of the sandpaper. Just align the sandpaper with the short hook on the grinding disc and press it gently to firmly stick it, which greatly saves the time and energy for replacing the sandpaper and improves work efficiency.