Hi Don! I am keeping a few small items that I manufacture so I need to do some small scale threading and knurling and I make C630 valve guides so drilling and reaming, I've used the 9 x 20 before and found it to be a good durable little lathe that will stand up to small scale production work. The SM is a used one but looks in good shape, I'm off to have a look and listen next week. I've looked at lots of lathes on line in that size bracket and I like the SM My only drawback is metric threading so I have some research to do there, My out going lathe was a metric one so that was a treat compared to change gears on an Asian machine. I did mostly component restoration for Vintage Motorcycles so lots of metric stuff.
