Features: Experience robust performances with our multifunctional engraving pen, featuring a powerful motor for stable speed ,strong engraving, carving, and polishing capabilities on diverse materials like wood and metal. This versatile tool boasts adjustable speed settings for customized control, a light weight alloy design for easy portability, and multiple interchangeable accessories to handle various engraving and grinding tasks efficiently. Designed for DIYer enthusiasts, artists, and professional craftsmen, it caters to users seeking a power tool for intricate creative projects and detailed craftsmanship. Ideal for engraving on surfaces in workshops, studios, or home settings, it is suitable for scenarios like jewelry making, model building, and fine art applications with its compact, fatigue resistant handling. Enhances safety and longevity with built in features such as overheat protections and start up current limiting, ensuring smooth operations during extended use across different materials. Specifications: Component:Metal Chucks ranges: 2.35mm Chucks depth: 25mm Size:Approx.125mm/4.92''x17mm/0.67'' Speed: 12000RPM, 16000RPM, 20000RPM Battery capacity: 500mAh Package Includes: 1Set Electric Engraving Pen note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.