SHIJIN Electric Engraving Pen, USB Rechargable Engraving Pen with 24 Bits, Cordless Etching Engraving Tool, Portable DIY Rotary Engraver for Jewelry, Wood, Glass, Stone, Carving, Resin Engraving Tool Set

PRECISION ENGRAVING：These metal engraving machine kit include 24pcs rotory bits, 2 saw blades, all these bits are enough to work on engraving, carving, sanding, polishing, etching, routing, grinding, drilling, cutting. Tips:Our Electric Engraving Pen is designed for fine precision work, delivering more accurate carving results. It operates effectively with gentle pressure—no heavy force required. ULTRA-LONG BATTERY LIFE：These engraving tool rechargable by USB interface. Cordless using will be up to 30 minutes idling after full charge. Easy to help you finish better engraved craft. 2 VISIBLE SPEED ADJUSTABLE：This electric engraving pen for all material is about 10000-19000r/min. Different speeds are used to engrave different materials. CONVENIENT AND VERSATILE：These portable and compact etching pen are convience to take anywhere you want and allow you enjoy relaxing hand drill jewelry making time. It can work on metal, glass, ceramic, leather, wood,jewelry,stone or statue.