Dewalt 13 mesh sanding sheets last at least four times longer than traditional dewalt sandpaper sheets the fibres are drawn away from the surface into the small holes and dont sit between the material to be sanded and the abrasive grains this optimises the sanding effect the dust can be drawn through the mesh sanding sheet across a wider area rather than being limited to distinct holes in traditional sandpaper its easier to use mesh sanding sheets as there is no requirement to match a specific d