Pilot drill bit

A pilot drill bit, comprising,

• an elongate shank, and an abutment flange fixedly and orthogonally mounted to the shank, and
• a series of pilot drill sections of descending diametrical sizing spaced from said abutment flange to an outermost end of the drill bit terminating in a conical tip, and
• each of the drill sections includes a fluted side wall, and wherein the shank, the abutment flange, and the drill sections are coaxially aligned relative to one another, and wherein each of the drill sections includes a first end wall spaced from and parallel a second end wall, wherein the first end wall and the second end wall are orthogonally oriented relative to the axis, and
• each drill section includes a central fluid cavity, and wherein the first end wall includes an internally threaded socket, and wherein the second end wall includes a threaded shank threadedly and removably mounted relative to the second end wall, wherein the threaded socket and the threaded shank are coaxially aligned relative to the axis, and wherein the side wall includes a plurality of fluid lubricant conduits directed therethrough in communication with the central cavity.