Tailstock pressure pad.

[jrouche]

I haven't made a separate piece like yours to add to a rotating centre for this purpose but I have a bull nose rotating centre with a flat end, which does the same job.
I might just copy your piece to use with a smaller centre for when the bull nose centre gets in the way. At the moment when I want to use the small centre I have a hardened round button which is centre drilled on one side which I interpose twix work and centre.

Yeah. That is what I have done before. I do like this pad though. I will be making one. JR