1Easy to plug, more convenient to replace the grinding head, suitable for 2.35mm grinding head diameter drill bit on the market. 21800020000 RPM to achieve maximum strength of manicure, suitable for both beginners and professionals use. 3Very suitable for salons and families. Come with nail drill machine and different nail drill bit to meet your demands. 4Small and light, and you just need to carry it in your handbag or suitcase to travel or wherever you want to go. 5For manicure, nail polish removal, as well as dead skin removal and so on, suitable for home, nail art shop, etc. Item Type: Nail Drill Machine Material: Aluminum AlloyPower Supply: USB interface Speed: 18000-20000 RPM Characteristics: Compact and beautiful, more in line with the female hand holding for operationUse: Household, nail shop, etc. Usage: 1. Plug the product's power cord into the power socket, and the power indicator is on. 2. Insert the plug of the DC power cord into the socket of the back cover of the grinding machine. 3. Select the appropriate grinding head according to the operation requirements, and then insert it into the hole of the front handle of the automatic loader. 4. Rotating speed and positive and negative rotation can be adjusted by rolling wheel. 1 x Nail Drill Machine 7 x Carborundum Drill Bit 4 x Quartz Drill Bit 6 x Sanding Bands 1 x Manual 1 x USB Cable Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.