Patent ID: 7354228

Claim:
A drilling tool comprising a primary shaft, said primary shaft being hollow and substantially cylindrical, and having a length, an interior, an inside diameter, an outside diameter, a proximate end, and a distal end; a drill bit, said drill bit having a cutting end, said cutting end suitably adapted to drill through materials, a diameter, said diameter of the drill bit being larger than the outside diameter of the primary shaft, and an attachment end, said attachment end located opposite the cuffing end of the drill bit and suitably adapted to be secured to the distal end of the primary shaft; a connection mechanism, said connection mechanism suitably adapted to secure the proximate end of the primary shaft to a drill; whereby the drill bit is secured to the distal end of the primary shaft and the primary shaft is secured by the connection mechanism to the drill, with the drill operating to rotate the primary shaft which in turn concurrently rotates the drill bit; and a conduit, said conduit being substantially hollow and substantially cylindrical, having an interior, a length, an outside diameter, a first end, and a second end; wherein the interior of the conduit is suitably adapted to allow a cable to pass into and through said interior of the conduit, and the outside diameter of the conduit is smaller than the inside diameter of the primary shaft, whereby the conduit is suitably adapted to be completely inserted into the interior of the primary shaft.