I have two lathes and both are gearheads. Smaller one is a Rockwell 14 by 41 variable speed with taper attachment and 5C collet closer. The larger of the two is a Turn Master 15 by 60. I run both lathes on 3 phase power and don't have finish imperfections with either. Only problem I have is the MT taper is larger on the 15 by 60 so I have to have two sets of tooling or adapter sleeves.