Discover the artist within you using the hand engraver pen, the ideal cordless electric engraver pen for those seeking to explore their creativity on 50+ surfaces This electric engraving pen for all material is about 8000-21000r/min, and different speeds are used to engrave different materials. The engraving pen is and ergonomically designed to give you precise control and engraving. The sound of this cordless rotary tool is very low when working, even if someone is sleeping, he or she not feel very noisy. Great for beginners and professionals to use anytime, anywhere to make creations that you like Rechargeable USB type-C charging metal engraver pen, there is a built-in overload protection chip, when the resistance is too high, it automatically power off to protect it, and prolong the service life of the jewelry engraving machine Color: A:Grey Material: Metal Package Contents: 1set x engraving tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.