Take a look at the "Head Stock ID Taper" for Model #325-1470 (bottom
left of the page). It says "3MTB&S". Obviously, this is nonsense.

Strangely, exactly the same mistake appears in the MSC catalogue for
the same tool. Take a look at
http://www1.mscdirect.com/CGI/NNPDFF?PMPAGE=1507 (lower right of the
page)

No suprise, they're the same company, probably made the web
pages from the same data except for stock-on-hand and price.
Try Penn Tool, Victornet, J&L, Wholesale Tool or one of the
others and see if you get a better answer (assuming any of
those carry the vertex)...

--Glenn Lyford