1. Quickly pull and insert the chuck, the grinding head is plug and play, and the replacement of the grinding head is more convenient and fast 2. Using a high-speed motor, 3-speed variable speed digital display, and strong power, to meet various work needs 3. Adopt metal reinforced body design, built-in polymer battery, lightweight, easy to operate, easy to with various tasks 4. Using USB-Type-C charging port, charging faster and more practical 5. Overload protection function 6. Package includes: - 1 x Sanding pen - 8 x Grinding head
