Delivering 450 ft.lbs. of fastening torque and 600 ft.lbs. of nut-busting torque, the Milwaukee M18 FUEL 1/2" Mid-Torque Impact Wrench with Pin Detent Kit (2860-21) is more powerful while also being up to 4" shorter and up to 2 lbs lighter than many competitive impact wrenches. The PowerState brushless motor delivers up to 0 to 2,400 RPM resulting in increased productivity. RedLink Plus Intelligence is the most advanced electronic system on the market, preventing damage to the tool and battery caused by overloading or overheating. For use with REDLITHIUM compact batteries or extended capacity batteries (sold separately), the M18 fuel mid-torque delivers more work per charge and more work over the life of the pack than competitive batteries on the market. The 3-mode DRIVE CONTROL provides greater control over output speed and power for greater versatility. This tool includes a 1/2" pin detent anvil which provides superior socket retention. This kit includes a 5.0Ah extended capacity battery pack and a multi-voltage charger.