1. Three adjustable speed levels: Three speed levels are adjustable, allowing you to choose different speeds based on the required working conditions. The first gear is designed for processing metal burrs, the second gear for treating coarse rust spots, and the third gear for handling car scratches. 2. More comfortable: Ergonomic handle design with a rubber coating, soft and nonslip, providing a more pleasant grip, low noise, and minimal vibration. 3. Brushless motor: Equipped with a brushless motor that produces no sparks during operation, no wear and tear, and offers long service life. speed, efficiency with low noise, and durability. 4. quality material: The housing is made of plastic, featuring a compact structure, lightweight and portable, operable with one hand, easy to carry and use.