I HAVE THE LARGEST LATHE FROM HARBOR FREIGHT AND WAS WONDERING IF ANYONE KNOWS WHAT THE MORSE TAPER SIZE OR THE THREAD SIZE IS ON THIS MACHINE. I WANT TO TURN SOME PENS FOR XMAS GIFTS AND FOUND THAT THE MANDREL COME IN MANY DIFFERENT SIZES FOR DIFFERENT MACHINES. NOT SURE WHICH TO GET.IS THE SREW TYPE BETTER THAN THE TAPER TYPE OR IS IT A PREFRENCE THING.:icon_scra