US Patent 9511482 Drive bit

A drive bit used with a drill for installing a small diameter shanked cup hook or eyebolt into a stationary surface. The drive bit includes a tubular member integrally joined to the shaft. The shaft has a hexagonal cross-section shaped shank and includes a detent for insertion of the grip end into the chuck of a power tool, or the socket of a manual driver. The tubular member has opposite forward and rear ends and a central axis of rotation extending through the ends. The tubular member has at least one longitudinal extending from near the rear end through said forward end of said tubular member, said slot being sized to accept a fastener. The length of the slot is predetermined to allow the selection of a variety of shanked cup hooks or small eyebolts.