Posted by Martin Connelly on 07/11/2020 20:25:33:
Don't rely on the results from just one new centre to give a true picture of the tailstock socket, the centre may not be perfect. You may be showing up an error on the surface of the new centre. Can you try the new centre in some other socket to see if there is a different result?
Martin C
Thanks Martin, I got 3 new centres, they’re all the same kind of pattern.