• Adjustable speed control: Ranges between 3000 and 20,000 RPM, ideal for different materials and applications, including metal engraving. • Complete accessory kit: Includes 5 grinding heads, 1 conversion head, and 6 sandpapers, with a snap-on interchangeable design for ease of use. • Versatility on surfaces: Works precisely on metal, glass, ceramics, leather, wood, jewelry, stone, and statues. • Portability: Compact and portable design with USB charging, easy to carry for use anywhere. • Durable material: Made with ABS housing, easily connects via USB for simple use.