Precision screw driver

FIG. 1 is a top front perspective view of a precision screw driver showing my new design;

FIG. 2 is a bottom rear perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a front view thereof.

The broken lines showings of the screw driver blade are for environmental purposes only and form no part of the claimed design.