Feature:Specification:This USB power supplys mini handheld electric grinder drill tool can be used in your home, nail salon and so on, portable size and powerful functions. If you need it, come on and have a try, it will not let you down.Features:Necessary engraving & grinding tool: Comes with 6 different grinding heads to meeting different needs for DIY carving and grinding.Widely use: Suitable nail gelatum removing, with adjustable speed of 3000~20000RPM, mini nail power drill machine set.Anti-rolling and comfortable design: The handy and fall-arrest grip provides superior comfort and control, give you a better using experience.Perfect gift choice: You can sent it to your friends or families as the birthday gift, anniversary gifts and so on.Easy to use: You can press and hold the sanding button, then loosen the heads screw, and insert the sanding heads and twisting to tight the opposite direction after insertion.Specifications:Material: plasticsColor: 8 optionalSingles speed: 20000Variable speed: 3000-20000 (Adjustable)Collets type: 2.4 or 3.2mmSpring chuck type: 0.3-3.2mmCable length: 920mm / 36.2inItem length: 150mm / 5.9inPackage size: 190 * 130 * 40mm / 7.5 * 5.1 * 1.6inPackage weight: 135g / 4.8ouncePacking list:1 * Electric Grinder 1 * USB Cable6 * Grinding Heads1 * User ManualPackage List:1 * Electric Grinder 1 * USB Cable6 * Grinding Heads1 * User Manual