Makita TWO350, 1/2" Impact Wrench with Detent Pin
I'm a big Makita fan, but I have to admit that the other tools on this list actually beat out Makita's impact wrench this time around. However, this tool has some nice features that are important to see. First of all, the tool is producing 258 ft. lbs. of torque, running at a variable speed of 0 - 2000 RPM. The other tools were not variable speed, so if you need a tool which you can use for a variety of types of equipment, this one might actually be a better choice. At 2000 RPM, it also provides 2000 IMP of impact power, as well as running off of much less electrical power than the competition, needing only 3.5 amps of power. If you're running off an already overburdened generator or trying to use a voltage inverter for power, that's an important consideration. Finally, the tool is built with ball bearings for the motor, to ensure long life and the brushes are externally accessible for easier maintenance.