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The ornamental design for a screwdriver head, as shown and described. |
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FIG. 1 is a front perspective view of a first embodiment of screwdriver head showing my design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a top plan view thereof, the bottom view being a mirror image;
FIG. 5 is a right side view thereof; and,
FIG. 6 is a left side view thereof.
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