Features: Discover the versatility of our Electric Grinding Pen, a multifunctional tool that integrates grinding, polishing, cutting, drilling, and engraving, designs to meet various needs effortlessly. with a cordless designs, this pen offers unparalleled freedom of movement, while its intelligent speed control system adjusts to different materials for best Performances. Suitable for electronics DIY enthusiasts, in wood and metal crafts, and students in educational institutions learning art and craft techniques. Perfect for electronic product assembly, it ensures precise shaping and smoothing of circuit boards, and is equally adepts at crafting unique art work from wood, plastic, and metal. With a powerful motor and Small designs, this tool enhances efficiency and comfort, making it essential addition to any toolkit for creating detailed models and intricate designs. Specifications: Component : metal Input voltages: 5V Item size: about 127.3x16.6x17.8mm Package Includes: 1 set Electric Grinding Pen note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.