Wide range of applicationCordless rotary tools can be used for carving wood, stone, peaches, handicrafts, glass, ceramics, etc., and also for carving, grinding, grinding, drilling, cutting, etc.[Adjustable Speed] The rotary tool has 3 adjustable speeds (5000, 10000, 18000RPM), suitable for many different occasions. The lowest speed lets you sand your nails safely, and the highest speed can also be used for metal engraving. Rechargeable BatteryThe engraving pen has a powerful motor, suitable for small size cutting, powered by 300mAh lithium battery. It can be charged via USB cable and can work for a long time after being fully charged. Cordless PortableWireless mini rotary tool, compact body, light weight and comfortable hand feeling. The compact and lightweight body makes it easy to handle delicate tasks and delicate work. Ergonomic DesignLight and compact design makes the electric engraving pen easy to carry. Non-slip handle adds extra comfort and stable control for precision engraving performance