FIG. 1 is a perspective view of a drilling tool showing my new design, with a middle portion between dash-dot-dash lines omitted,
FIG. 2 is a front view thereof, with a middle portion between dash-dot-dash lines omitted,
FIG. 3 is a plan view thereof, with a middle portion between dash-dot-dash lines omitted,
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is an enlarged left side view thereof;
FIG. 7 is an enlarged perspective view thereof;
FIG. 8 is an enlarged front view thereof;
FIG. 9 is an enlarged plan view thereof;
FIG. 10 is an enlarged left side view thereof; and,
FIG. 11 is a reduced front view thereof.
All broken lines shown in the drawings represent portions of the drilling tool that form no part of the claimed design.