MACHINE; Model: 618EVS Type: SuperPrecision Electronic Variable HighSpeed Toolroom Lathe SPINDLE CAPACITY; With jaw chucks: 6" With expanding collets: 3" With round 5C collets: 11/16" With hexagon 5C collets: 7/8" With square 5C collets: 3/4" With step chucks: 11/16" to 6" Spindle nose diameter: " Spindle nose / : 5C / 4º taper Hole through .