Harbor freight doesn't have one that fits, but Amazon does. It's an adjustable pin spanner.
If you don't want to wait, and you have a solid bench vise, you can do it easily with little tools.
The brass drift may work fine, but if it is stuck in tightly, you may need more leverage.
First, make sure you lightly drill out any punch marks along the edges of the retainer nut and hub that may hold it in place.
Get 2 drill bits about the diameter of the holes. Carefully measure the distance across opposite holes.
Tighten the drill bits in the vise the same distance, with the shank ends sticking up about 1/4".
Drop the wheel onto the two pins, grab the wheel/tire, and rotate counter-clockwise to loosen the retainer.