Posted by John Haine on 30/01/2017 16:21:00:
… though that might have been my unskilled manufacture!
(maybe off topic)
John – I thought that honesty in machining results was not allowed on an on-line forum? 
Ken – I completed a Worden T&C grinder from the Hemingway kit a while ago, but one resolve for 2017 is to learn to actually use it, as it is a belief of mine that sharp, accurate tooling might lead to better honesty on my part. 
I did use the Worden to sharpen an internal carbide threading tool last night, and used it for two M22x1 threads, and it all worked out better than expected.
My advice (worth what you paid for it) is to set it up and learn how to use it.
JohnS.