Originally Posted by wildjim
The new headset should have included a "matched" crown race for the fork.
There are tools to remove the crown race and also to seat the crown race. Although I have removed a few "carefully" using a flat faced punch (I've read of some folks using a screw driver). To seat the crown race I use a PVC pipe with or without a copper or bronze pipe fitting; which may be found at a hardware store.
That's a clever DIY tool. I'll have to try that next time