Add Bob Vila (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. .acf-product-table-block]:pt-9 [&>.acf-product-table-block]:pb-0 [&>.acf-product-table-block]:mb-0"> Best Overall Milwaukee M18 Fuel ½-Inch High-Torque Impact Wrench Buy at The Home Depot Buy at Ace Hardware Best Bang for the Buck Kobalt Next-Gen 24V ½-Inch Cordless Impact Wrench Buy at Lowe's Upgrade Pick Makita 18V Cordless ½-Inch Impact Wrench Kit Buy at The Home Depot Buy at Acme Tools Photo: Glenda Taylor for BobVila.com We may earn revenue from the products available on this page and participate in affiliate programs. Learn More ›
A cordless impact wrench can make quick work of stubborn nuts and bolts that would otherwise require serious effort with a handheld ratchet. We tested 15 models on lug nuts, stuck fasteners, and larger equipment bolts to see how well they handled demanding real-world jobs.
These cordless power tools deliver the rotational force needed to loosen or tighten tough fasteners without the air hose and compressor required by pneumatic models. Of the models we tested, the Milwaukee M18 Fuel ½-Inch High-Torque Impact Wrench is our top recommendation for its combination of power, compact size, and excellent control. Several other models stood out for heavy-duty jobs, automotive repairs, and value.
Torque is important, but size, weight, speed settings, battery capacity, and control features also affect how an impact wrench performs. Ahead, we cover what to consider when shopping and how our tested models earned their spots among the best cordless impact wrench options.
Here, we break down the key features and considerations to keep in mind when shopping for an impact wrench. But choosing the right model doesn’t have to be complicated. The impact wrenches on our list stood out in testing for their combination of power, performance, ease of use, and other important factors we cover below.
The Milwaukee M18 Fuel ½-inch High-Torque Impact Wrench is built for jobs that demand serious breakaway power. During our testing, we used it on dozens of stubborn fasteners, including lug nuts and larger equipment fasteners, and it had the muscle to break them loose without a struggle. Its brushless motor produces up to 1,100 foot-pounds of fastening torque and 1,500 foot-pounds of torque with the included 5.0Ah battery. Despite that output, the tool measures just 7.6 inches long, making it relatively compact for a high-torque impact wrench.
We also liked this unit’s four-mode drive control, which provides a higher level of control when full power isn’t necessary. Mode 4 includes an auto-shutoff function that limits fastening torque to 50 foot-pounds, while bolt-removal mode delivers full power to loosen a fastener and then reduces speed to help keep it from flying off. The friction-ring anvil makes socket changes quick, and three LEDs surrounding the anvil illuminate the work area with fewer shadows.
All that power comes with some heft. At 5.9 pounds before adding the battery, this isn’t the impact wrench we’d choose for prolonged light-duty work. But for stubborn lug nuts, rusted bolts, and heavy equipment fasteners, its combination of torque and relatively compact dimensions stood out in our testing.