Get the most powerful, most compact, longest-running impact wrench in its class. The M18 Cordless Lithium-ion 1/2" High-Torque Impact Wrench features a Milwaukee 4-pole motor and powerful impact mechanism to deliver a reliable 450 ft-lbs of torque with maximum runtime. You’ll get consistent speed control between 0-1900 RPM and 0-2200 IPM with the variable-speed trigger. A 1/2” anvil with friction ring allows quick and easy one-handed socket changes. Our M18 Battery delivers up to 2.5X more runtime, 20% more power and 2X more recharges than standard lithium-ion batteries. The lithium-ion battery pack features superior pack construction, electronics, and performance giving you more work per charge and more work over pack life than any battery on the market. The rechargeable battery also offers you 5.0 amp-hours of runtime. Each battery pack is durably built for heavy-duty use, runs cooler, and performs in climates below 0°F/-18°C. 48-59-1812 M18 & M12 Multi-Voltage Charger accepts all M18 and M12 batteries, so you’ll always be prepared and productive, especially on jobs that require a mix of M12 and M18 Milwaukee cordless power tools.