Three speed settings adjustable for different tasks: - Gear 1: for processing metal protrusions - Gear 2: for treating coarse rust stains - Gear 3: for treating car scratches High quality material and portable design: - The case is plastic, compact, lightweight, and easy to carry. - Operable with one hand for convenient use. Comfortable and quiet operation: - Ergonomic handle with rubber coating for a soft, non-slip grip. - Low noise and low vibration for comfortable use. Brushless motor for durability and efficiency: - Brushless design avoids sparks and wear, delivering long working life. - High speed and high efficiency with low noise and good durability. Practical use scenarios: - Smoothing metal burrs and removing protrusions from metal parts. - Eliminating coarse rust stains from metal surfaces. - Treating light car scratches on exterior paint or trim.