Intelligent power-off protection: Rechargeable USB type-C rechargeable metal engraving pen with built-in overload protection chip. When the resistance is too high, it automatically power-off protection to extend the service life of the jewelry. Engraving machine These portable and compact pens can be conveniently taken anywhere you want, allowing you to enjoy a relaxing handcrafted jewelry making time. It can work on metal, glass, ceramics, leather, wood, jewelry, stone or statues. 3 levels of visible speed adjustment: This electric engraving pen is suitable for all materials, about 5000-18000r/min, and different speeds are used to engrave different materials. The engraving pen is and ergonomically designed to provide you with precise control and engraving. Low Noise: This cordless rotary tool works with very low noise, even if someone is sleeping, he or she not feel noisy. Perfect for beginners and professionals to use anytime, anywhere to make creations you love Our metal engraving tools are easy to operate and can be used to create keychains, DIY necklaces or send gifts using our kits., Weight: 0.48060773116 pounds, Manufacturer: tiyao