What's a SENTEK small mill?

Do a google search on Centec. That spelling is probably as a result of phoning in the advert to a semi-literate clerk that did not think to ask how to spell it.

If you are interested in a mill that has a bit larger work envelope than a Sherline or Taig, but made of real cast iron, this may be a good pick. If that is what it is. Try

Thanks, that's it.