Electric Engraving Pen with 30 Bits, USB Rechargeable Cordless Etching Pen, Professional Mini Carving Machines Portable DIY Rotary Tool Engraver for Jewelry Stone Wood Glass Metal Plastic Resin Model

【USB Cordless Engraving Pen】This update engraver pen is rechargeable, come with USB cable. It can be used cordlessly for more than 90 minutes after a full charge, more powerful and easily helping you to accomplish better engraving process.
【30 Engraving Bits】Includes 30 high carbon diamond bits. These bits are sufficient for engraving, carving, sanding, polishing, etching, routing, grinding, drilling, and cutting. You can carve intricate details with ease, and the lightweight and compact design allows you to complete complex jobs effortlessly.
【LCD Display Speed Adjustment】The engraving machine has three speeds adjustable, speed range 10000-21000 r/min. Engraving pen is suitable for decorative or personalized processing of metal, plastic, glass, jewelry, ceramics, wood, leather and many other materials.
【Intelligent Protection Device】The engraving tool has a built-in safety protection circuit board and intelligent overload protection chip, which will automatically cut off the power supply after five seconds of blocking to prevent damage to the electric engraving pen.
【Best Gift】This portable and compact engraved pen is easy to carry around and simple to operate, suitable for beginners. You can use your creativity on more than 50 surfaces with this custom engraving pen. Use it for holiday gifts such as Christmas, Halloween, birthdays and Easter.