Subject: [CR]More on that fork
Norris wrote:
"As for threading the plain column, that poses more of a problem in my experience. No matter what make of die I have used and whose die-holder , including all those adjustable ones, I have nearly always finished up with quite a tight thread.. When the columns are made in the factory, the threads are not cut, they are rolled and that process seems able to produce a n accurate thread that is almost unachievable by hand."
Forget cutting new threads with the fork dies on the market. Those dies are really only good for chasing (cleaning up) threads. For new threading, find yourself a machine shop to work with . A machinist will hold the fork column in a lathe using a plug or expanding mandrel and cut the treads with a single point tool in a few passes. Fast, easy, and no damaged forks from using dies.
Hugh Enox