Thank you Michael.No Brian I’m not after an eclipse type of punch I’ve got one of those but prefer the one in the link but I can’t remember where I got it from. Mark P.
The picture I your album looks like a home made wobbler. Grip base in tailstock chuck, put point in centre pop in work in 4 jaw chuck, rest DTI on body just behind point, rotate and adjust jaws for alignment, Is that it?