The DongCheng 710W Corded Impact Drill features a 710W high-power motor that can achieve sustainable and stable output with a maximum drilling diameter of 16mm on concrete. It has the functions of an electric drill and impact drill to meet the needs of more working conditions. One-key switch between forward and reverse, ensuring high efficiency. The self-locking switch design can easily cope with long-term continuous work. Adjustable speed precise control guarantees more stable power transmission.