Multi Usage: this nail drill set is used for removeing gel polish, surfacing poly gel, removing old acrylic material and smoothing nails, trying it with nail dip powder. Also can be used for grinding, carving, sharpening, engraving for nails art work and cuticle removal.^ Multi Usage: this nail drill set is used for removeing gel polish, surfacing poly gel, removing old acrylic material and smoothing nails, trying it with nail dip powder. Also can be used for grinding, carving, sharpening, engraving for nails art work and cuticle removal.^ Lightweight and Portable: the max diameter of this mini nail drill pen is 18mm, and its weight is only 1.78oz, handy and easy to hold, making it easy to carry out and also good for travel.^ USB Charging: unique USB design, you can use it with power bank, PC, or with adapter. Greatly to solve the problem caused by short cord which has to be connected to the wall or unit, making it more convenient for using.^ Package Includes: electric nail drill, 6 mental nail drill bits and 5 carbide bits, extra replaceable sanding bands,1brush,1grater, USB cable and user manual.