USB Rechargeable Design: Our engraving pen is USB rechargeable. Can work for more than 60 minutes after fully charged. Portable and simple engraver for all surfaces, such as engraving jewelry, wood, plastic, glass, leather, metal and stone. Especially suitable for beginners. Visible speed adjustment: 3 adjustable speeds (5000-18000 rpm), you can adjust the working speed for different applications, with electric quantity control indicator light and overload indicator, you can know the application situation of the engraving pen in real time. High Quality: Our engraving pen with excellent motor, power up to 25W while working. Adopts intelligent overload protection chip, large resistance will automatically cut off power supply, safe to use. The body of the is made of aluminum, the ergonomic handle provides more comfort and smooth control, makes the engraving work more precise and relaxed. Multi-use engraving kit: the engraving pen can be used as an electric engraving machine or polishing tool that allows you to customize or decorate almost any surface in seconds, such as metal, plastic, glass, ceramic, wood, leather, diamond, stone and many other things. ideal for DIY creation, light projects etc. Engraving tool kit: includes 1 engraving pen, 20 bits, 3 stainless steel cutting discs (22 mm, 25 mm, 32mm), 1 stylus. 16 stencils, 1 USB power cable. Electric engraving pen enough for everything you need.