Electric Engraving Pen Kit Rechargeable Cordless Engraving Tool Note: This is a low-powered, non-specialist electric engraver, suitable for small engraving and grinding areas. This engraving kit can be used for engraving, carving, sanding, polishing, etching, grinding, drilling and cutting. Features: Compact and lightweight design, held like a pen, allows you to engrave smoothly and effortlessly. 3 gears adjustable speed making it is suitable for many different material. (The lowest speed allows you to polish your nails safely.) Come with 4 graphic stencils, and 4 letter and number stencils and 8 flowers stencils for your creative convenience. The engraving pen has a power indicator and an overload indicator, which can know the usage of the engraving pen in real time. Low noise design allow engraver pen keep quiet while working, will not feel noisy. Built-in 1 rechargeable 300mAh lithium battery, it can work for 1 hour after 1 hour of full charge. When the engraving pen is subjected to excessive resistance, it will automatically cut off the power for self-protection to avoid damaging the motor, thus prolonging the service life. Suitable for surface such as jewelry, wood, plastic, glass, leather, metal and stone engraving. Specifications: Material: Aluminium Alloy, ABS Engraving Pen Size(Dia.xL): 1.6 x 12cm Cutting Discs Diameter 22mm, 25mm, 32mm Speed: 5000-10000-18000 RPM Power Supply Method: USB charging cable power supply (power adaptor not included) Battery: 300mAh Li-Polymer battery Charging Time: 1h Working Time: 1h Power: 10W Voltage: 4.2V Charging Interface: USB-Type-C Package