USB Rechargeable Design: Our engraving pen is USB rechargeable. Cordless use lasts up to 30 minutes idle after fully charged, which can meet most of the requirements of your DIY projects at anytime and anywhere. Portable and simple etcher for any surface, such as engraving for wood, plastic, glass, leather, metal, stone, and also for nail polishing. Just insert the bit to use, super easy and is perfect for both beginners and professionals. Visible Speed Adjustment: 3 levels adjustable speed(5000-10000-18000RPM), you can adjust working speed for different application. Usually, low speed for metal and wood, fast speed for glass and ceramic. Electric engraving pen with electric quantity indicator light and overload indicator, you can know the engraving pen application situation in real time. Best Choice For Beginner: Our engraving pen one step installation, no required tool, just insert bit to use and plug out after use. 3 levels adjustable rotation speed allows beginners to learn to carve gradually and use it safely. Engraving Tool Kit contains 1x engraving pen, 20 x bits, 3 x stainless steel cutting discs (22mm, 25mm, 32mm), and 1 x shank pin. 16 x stencils, 1 x USB power cable. Electric engraving pen enough for everything you need. Multi Usage Engraving Kit: The engraving pen can be used as an electric engraving machine or polishing tool, which allows you to personalize or decorate almost any surface in seconds, such as metal, plastic, glass, ceramic, wood, leather, diamond, stone and many more. Engraving tool ideal for DIY creations, crafts, light projects, personalized accessories, and gifts. High Quality: Adopts intelligent overload protection chip, large resistance(press too hard) will automatically cut off power, use safely. Light and compact pen-like design provide comfortable use for precision engraving performance from fine lines to deep grooves, you can hold like a pen, lightweight & compact design, letting you perform intricate work smoothly and effortlessly. Keep the portable size and USB wireless engraver so you can apply the engraving tool everywhere.