Hole saws are used to cut perfectly round holes in a wide variety of materials. They can cut holes with much larger diameters than traditional drill bits and, because they only cut out the perimeter line of the hole, they are much more efficient than a sp

Sandpaper Grit Guide Grit Purpose 60-80 Extremely coarse; best for removing large amounts of wood and rounding off corners. 100-150 Medium grit; good for general purpose sanding. 180-220 Fine; used to roughen surfaces for painting or as a first passth