Brand new High Torque and Powerful Brushless Motor: SundpeyPRO high torque impact wrench has a built-in brushless motor, which provides stable operation, high efficiency and long service life. The impact wrench 1/2 inch provide max torque 1200N·m(900ft-lbs), which can easily loosen or tighten all kinds of bolts or nuts, and is widely used in unloading car tires, automotive repair, heavy equipment maintenance, large-scale construction projects or product assembly 2 x 4.0 Ah Batteries and Dual Protection Function: The 1/2 inch cordless impact driver is equipped with 2 x 4.0 Ah high performance high capacity rechargeable batteries, which can provide this impact ratchet wrench with a longer use time, making your work easier, saying goodbye to the trouble of frequently replacing the batteries, and improving your work efficiency. LED power indicator, easy to check the remaining power Two Directions and Reverse Auto-Stop Mode: The power impact wrenche has locking protection, forward and rever