I am trying to identify a taper on a drive centre and it does not appear
to
be a Morse taper. The dimensions I have are as follows:
I suspect the taper is metric but I cannot find a source to prove this.


Let's face it. If its a wood lathe, then the chances of it being a Morse
Taper is in the vicinity of 99 out of a 100. Rather than 'cuss and discuss'
it, why not just try a MT and see if it works? Dan