13 x 457 mm Sanding Belts The sanding belt is suitable for aluminum, non-ferrous metals, iron and stainless steel and can be polished quickly. The blue sand is stronger and has a long service life. This set will be the first choice for DIY enthusiasts because of its wide variety of applications and high quality. The 4 grit sizes will give you a different experience when using a sander. Grit: 80/120/40/60 Sanding material: zirconia corundum/semi-brittle corundum. Quantity: 16 pieces. Size: 13 x 457 mm Adopt more advantageous home technology The precision-made two-way joint makes the sanding belt firmer, flat and does not break, and the belt can run in both directions. The blue sanding belt is composed of brown corundum and semi-brittle corundum. zirconium. The abrasive belt is thicker. Belt interface is firm and does not break. Slanted straight ring eliminates gap on the surface of the abrasive belt. Long service life. 13 x 457mm Belt Sander Sanding Belts Material made of high quality