J1MK460 Features: High accuracy, low noise, extreme rigidity, JIS Standard of Japan and CE standard. Metric, whit worth, Module and D. P threads. Suitable for various kinds of shafts, sleeves and disk-type work pieces. Accepting special orders such as voltage, frequency, speed etc. Protective device of overload, to guarantee safety. Foot-braking device, for high efficiency and safety. Max. Swing over bed/ center distance: 18mm/ 34 inch Max. Swing over carriage: Φ260mm Max. Swing in gap: Φ640mm Speed steps: 12 Range of speed: 25-1500 rpm Bore in spindle: 80mm Max. Cross slide traverse: 270mm Spindle motor: 7.5kw Machining accuracy: Roundness (0.002-0.006)/ Flatness (0.004-0.01) There are other models with different specification that can be chosen, such as MK 530 and so on.