FIG. 1 is a front left perspective view of a first embodiment of the impact driver;

FIG. 2 is a left elevational view thereof;

FIG. 3 is a right elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a front left perspective view of a second embodiment of the impact driver;

FIG. 9 is a left elevational view thereof;

FIG. 10 is a right elevational view thereof;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a rear elevational view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

The broken lines showing various portions of the impact driver are for illustrative purposes only and form no part of the claimed design.