The parts in the kit can be assembled into 6 kinds of machines with different function- jigsaw, wood turning lathe, metal lathe, milling machine, drilling machine, sanding machine, only one kind of machine can be assembled each time. 1. Motor speed: 20,000rpm/min (optional choice 12,000rpm/min) 2. Input voltage/current/power: 12VDC/2A/24W Switching power input: AC110V-240V 3. Jigsaw working table size: 90mm*90mm 4. Maximum working material diameter of metal lathe and woodturning lathe: 50mm 5. Working material length of metal lathe and woodturning lathe: 135mm 6. Axis X travel: 30 7. Collets: 1-6mm 8 .Drilling working table size: 123*100mm 9. Maximum workpiece size clamped by machine vice: 30mm 10. Maximum workpiece diameter clamped by three-jaw chuck: 50mm 11. All of the machines are safe touch except milling machines. It requests to be used under parents or teachers instruction when the milling machine is being used by the kids. Thickness of working material of jigsaw: hardwood 4mm, plywood 7mm, soft wood 18mm, aluminum 0.5mm, acrylic 2mm. It is a good tool for families and schools to do model airplane and other wood model crafts.