Initially I was disappointed with this thing because it would not fit my lathe.  The disappointment was my fault though, as I thought I had ordered a 3MT, upon rechecking my order, I found the mistake (on my part).  Having screwed up, I chose to keep it because the spinning head is actually solid, and rolling on what seem to be really high quality bearings.  It was a simple matter to get a sleeve for the 2MT shaft that adapts it to 3MT.  I have used it a couple times now and I am pleased with it, especially at such a cheap price.