Originally Posted by
zacster
Put the tool in a bench vise with the splines sticking up, and place the wheel horizontally so that lockring is on the tool. With the chainwhip properly engaged, rotate the wheel and chainwhip by holding spokes and whip together and press down to keep the tool engaged. You get a lot of leverage this way and having the wheel horizontal will keep it engaged.
I've used that method in the past for freewheels, but thos problem is not because it's stuck