With a 16° taper this reaming bit lets you easily restore stripped screw holes. Used in a hand drill, it reams the hole, which you then plug with a dowel (or scrap of wood) sharpened to a point, for example using a pencil sharpener. It works equally well preparing holes for decorative plugging. By adjusting the depth control on a drill press, you can ream to whatever size you want, letting you easily make holes for plugs of any size up to 10mm(3/8") diameter. Plugs are almost costless since they can be made quickly in a pencil sharpener from shop scraps. For restoring screw holes, instead of drilling a pilot hole in the center of a dowel, use one of the included 10 pre-drilled dowels (leadless pencils).