Tailor-made sanding discs from sheets

Random-orbit sanders have no equal for quickly and effectively sanding a surface; however, it's sometimes hard to find discs finer than 320 grit. Because I wanted to use my random-orbit sander to smooth finishes, I began making my own hook-and-loop abrasive discs from sandpaper sheets, which are available in much finer grits. The simple process is shown in the drawing. (I use worn 220-grit discs, and make the dust-collection holes with a hole punch.)With this technique, my grit choices are almost limitless. I've even made terrific buffing pads from old flannel shirts and fleece sweatshirts. When a buffing pad becomes worn, I simply add a new one on top of it with spray adhesive.—Mark Blomster, Plymouth, Minn.