1、The four-in-one set can be composed of four different types of machine tools (wire saws, wood lathes, sanders, hand-held machine tools). 2、Machines that can only assemble one of the four functions at a time 3、The machine has a safe and hand-free setting. The maximum cutting depth of the wire saw machine is 4mm for hardwood, 7mm for triple plywood, 18mm for softwood, 0.5mm for thin aluminum sheet, and 2mm for plexiglass 4、It is a good tool for family and school children to make aeromodels and other woodworking models. 5、Great processing and high quality, easy to assembly and convenient to operate. Item Type: Mini Motorized Lathe Machine Motor Speed: 20000 rpm Table Area of Wire Sawing Machine: 90mm x 90mm Wood Lathe Processing Material Maximum Diameter: 50mm. Wood Lathe Processing Material Length: 135mm. Chuck: 1-6mm Sand Mill Table Area: 123X100mm Hand-held machine has 7 grinding tools 1 x 4 in 1 Machine Tool(parts need to be assembled into corresponding machine tools) 1 x Optical Disc 1 x User Manual 1 x Adapter 1 x Plug 1 x Installation Accessories(1 Box) 1 x Screwdriver 1 x Wood File 2 x Wooden Stick 2 x Wood Plate