One Tool For 50+ Materials: Engraves metal, wood, glass, plastic, leather, ceramic, stone, and jewelry with consistent precision. 5-Speed Control (12,000–25,000 RPM): Adjust power easily for both fine detailing and deeper engraving on different surfaces. 42-in-1 Professional Kit: Includes diamond burrs, tungsten bits, polishing heads, drill bits, and saw blades — covering engraving, cutting, grinding, and polishing. Stable & Beginner-Friendly Performance: 130 gf·cm torque with CNC bearing system reduces skipping and improves control for clean results. Cordless & Flexible Use: Rechargeable design with pass-through charging allows uninterrupted work anywhere. Built-In LED Lighting & Safety Protection: 4 LED ring lights improve visibility in low-light work, with overload and short-circuit protection for safer operation. Lightweight Premium Build: 100g aviation-grade aluminum body designed for comfortable long-session use.