【Upgraded Adjustbale Powerful Motor】Cordless impact wrench equipped with （100N.m / 150N.m / 200N.m / 300N.m / 400N.m) five mode torque adjustment, applying different working requirements, Maximum torque for tightening is 300 ft-lb, and loosening is 350 ft-lb. 【3.0Ah Battery & 1 Hour Fast Charging】Compared to 2.0Ah batteries, power impact wrenches equipped 3.0A battery increase 40% battery life, our unique motor degisn reduces power consumption, with a battery life similar to that of a 4.0 battery. Moreover charging time is greatly reduced to 1 hours with the fast charger. Need not charge the power impact wrenches frequently anymore. 【Infinitely Speed Control】This cordless impact wrench 1/2 inch fastest speed can reach 2300rpm, The further you press the trigger, the higher speed achieved. Rubber anti slip design for better grip. 【LED Light】The built-in super-bright LED light of cordless impact wrench 1/2, convenient for working at night, when you press the switch trigger, the light