Mine is oil lubricated milling spindle 30HP, 12k RPM. Quiet as a mouse when its running. Gets loud as hell as soon as the endmill engages the workpiece. Rips off the stock. Lol.Philabuster- very happy to hear you say that, if its 3/4 as solid, reliable, and durable as the old one I'd be satisfied. I was concerned about the milling spindle when they changed to grease feed from oil feed, but they switched back to oil feed on this machine(i...H's). Anyone know anything about that?