Cordless Electric Mini Drill Grinder Engraving Pen Variable Speed Rotary Tool

Features: USB charging: This electric jewelry diamond powered by a USB interface can satisfy your outdoor use after charging. It can also be used while charging but we recommend that you use it after charging to extend the battery life. Power-off protection: When the etching tool encounters a lot of resistance it will automatically shut down to protect itself and extend its service life. Then you just need to press the ON/OFF button to start working again. 3 speed options: These electric engraving pens can adjust the speed between 5000 and 25000 r/min the lowest speed allows you to polish your nails safely and the highest speed can also work on metal surfaces. Application: Suitable for all kinds of stone carving wood carving olive carving plastic carving egg carving glass carving ceramic carving drilling and various metal surface polishing carving trimming etc. Start carving art now: This portable and compact etching pen can be easily carried with you allowing you to enjoy the easy time of making hand diamond jewelry. It can work on metal glass ceramics leather wood jewelry stone or statues. Specification: Power supply: USB charging Power: 25W Voltage: 3.6V Speed: 5000-25000r/min Clamping diameter: 2.35mm (applicable to all 2.35MM grinding heads reducers etc.) Power display: 1 light = 30% power 2 lights = 31%-70% battery 3 lights = 71%- battery Package list: 1* Engraving pen 1* data cable 1* 30pcs 2.35 rotation position 2* Drill bit (1.0mm 1.5mm) 3* Stainless steel cutting disc (22mm 25mm 32mm) 1* 2.35 shank post notes: 1. Due to manual measurement please allow an error of 1-3mm. 2. Due to the difference of different monitors the picture may not reflect the actual color of the item. Thanks!