Abstract: A reusable low cost drill bit element for operative, removable attachment to a turning implement for drilling anchor installation holes, particularly of at least ½? diameter, in drywall. The drill bit is comprised of a section to be engaged with the turning implement and to be turned therewith, a drilling section with angled step sections in common planes perpendicular to the drill bit axis to perpendicularly bore into the drywall and form a perpendicular through aperture of a desired diameter, and an element to prevent the drill bit from falling behind the wall so that it can be reused to bore additional holes for other anchor.

Abstract: A sanding belt for use on a rotating drum, is anchored on the drum by means of an elongated strip of sandpaper having a length slightly less than the circumference of the outer surface of the drum. The drum is made of a resilient material, such as rubber, and is adapted to be coupled to the chuck of a hand held power drill. The sandpaper strip is positioned between the outer surface of the drum and the inner surface of the sanding belt with the sandpaper grit of the strip being in contact with the sanding belt thereby preventing edgewise creep during utilization.