The ornamental design for the mirror image drilling jig, as shown and described.
FIG. 1 is a front perspective view of the mirror image drilling jig;
FIG. 2 is a side view of the mirror image drilling jig;
FIG. 3 is a rear perspective view of the mirror image drilling jig;
FIG. 4 is a front view of the mirror image drilling jig;
FIG. 5 is a rear view of the mirror image drilling jig;
FIG. 6 is a top view of the mirror image drilling jig; and,
FIG. 7 is a bottom view of the mirror image drilling jig.
The broken line showing of structural features is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design.