Vertical vs horizontal mill - practicalmachinist
Jan 15, 2007· A small horizontal mill will do most of what a vertical mill will do, with some hassle and some exceptions. And it will do a lot that is difficult or even impossible on a vertical mill. My small Lewis horizontal has a 1/4 HP motor, but it does a very respectable job of removing unwanted metal, turning a 4" cutter at 30 or 40 rpm.