ZR mini metal milling machine is not only powerful to process the regular materials, but also it is perfect choice for special items, such as various types of planes, grooves, gears etc. Technical Parameter: 1.X-axis slider travels: 150mm 2. The chuck and collets is 1 to 6mm 3. Electroplated metal vise is featured with onr-time molded scale lines, that's more convenient for positioning and processing 4. The dimension of metal vise: 80mmX47.5mmX25mm, maximum clamping size: 50mm*50mm 5. Machine size: 250mm*200mm*300mm Kindly notice: Due to the sharply blade, there is a certain risk when children use the mini metal milling machine. Please try to operate it under the guidance of your teachers