1. Featuring a pen-shaped design, this electric grinder provides a comfortable grip. It includes an efficient heat dissipation system to protect the motor for long-lasting durability. 2. Designed with 3 levels of power adjustment, this electric grinder supports various tasks including polishing, carving, rust removal, cutting, and drilling. 3. Constructed from plastic and metal. 4. Equipped with a universal USB charging port for convenient charging anywhere with USB power. 5. Suitable for jade carving, wood, chipboard, epoxy board, and similar materials. Voltage: 3.6 V Special Feature: Rechargeable Maximum Rotational Speed: 15,000 RPM Minimum Rotational Speed: 5,000 RPM Color: Black-Blue Material: Metal + Plastic Package Contents: 1 × Electric Grinder, 1 × Grinding Head, 1 × USB Cable Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.