Technical Parameter:Hi-power motor is adopted with all drive axes, maximum speed up to 20,000 rpmInput voltage/Current /Power: 12V/3A/36W Input Voltage of Switch Power Supply: 110V-240V The largest diameter of processed material: 50 mm (Positive Jaw Gripping Range: 3mm-30mm,Opposite Jaw Gripping Range: 3mm-50mm;Kind Notice: manual measurement, there will be 2-3mm error.) The length of processed material: 150mm The chuck and collets is 1 to 6mmX-axis slider travels: 150mmThe processed materials can be clamped by three-jaw chuck / collets, its maximum diameter is 50mm, center height-25mm, center distance-150mmMachine size:310mm*100mm*150mm; Bottom plate size: 315mm*200mm*17mm Package Includes：1 x Mini Lathe1 x Set of Accessories1 x Power Adapter1 x Workbench Plate1 x ManualQ1: What's the usage of ZHRUI miniature machine tools? The miniature machine tools have the same features as big industrial machines, the only differences are their size and the 12V drive. You can use it for DIY model making and some little crafts, which is also able to process hard wood, soft metal, alloy etc...Based on its modularity and the child friendly use, that's ideal& creative product to inspire children hand-on skill&innovative ability. Q2: Is it easy to assemble and operate the miniature machine tools? What we provided is the installed complete machine tools, meanwhile, there is full set of English manual & guide videos to show you how to use it smoothly. If you still have any query, please contact our online customer service. Q3: How about the after sales service? Free spare parts and one year warranty