Alpin 72534 Digital impact wrench, 12V, mm with digital torque setting, including 17, 19, 21 and 23 use, in a practical case (Automotive)
First, I must mention with praise, that I was very impressed by the functional principle. Despite the "only" 12V and 10A creates the impact wrench to loosen and stubbornly stuck screws. The principle: A mass in the impact wrench is made to rotat