The ACER EMill™ carries the extras and features that make it an excellent mill. Just some of their highlights include: A fan cooling system that dissipates heat efficiently. 3HP inverter motor. Precision ground rams ways within " accuracy. Top brand "TOSHIBA" or equivalent frequency inverter drive. 3HP variable speed from 60 to 4,500 RPM. Table surface is HRC 52. All lead screws ...