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A cordless impact wrench is one of the most useful tools you can keep in your garage, especially for automotive work or any project where you’re constantly fastening and loosening stubborn bolts. Unlike traditional wrenches or even smaller power tools, these deliver serious torque, making tasks like removing lug nuts or tackling rusted fasteners much quicker and easier. Modern designs also pack big power into compact, lightweight builds, so they’re easier to maneuver and less tiring to use.
Right now, the Milwaukee M18 1/2-Inch Impact Wrench is available at Walmart for just $139, a 44% discount off its regular $249 price. At only 5.1 pounds, it’s a lightweight option that doesn’t sacrifice strength, delivering an impressive 650 foot-pounds of torque. That makes it a reliable choice for everything from routine tire rotations to heavier-duty projects like working on a diesel truck or even heading to the construction site.
Milwaukee M18 1/2-Inch Impact Wrench, $139 (was $249) at Walmart
This impact is powered by Milwaukee’s PowerState Brushless Motor, providing 8,500 rpm for fast fastening performance. It features four-mode drive control for customized speed and torque, including auto shut-off to prevent overtightening and bolt removal control to help reduce speed once a fastener is loosened. Tri-LED lighting brightens the workspace with minimal shadows, while RedLink Plus Intelligence protects the tool from overload, overheating, and over-discharge. It’s also compatible with all Milwaukee M18 RedLithium battery packs, but note that the charger and battery are sold separately.
One buyer shared, “This thing saved me from going to the mechanic!” Another compared it to pricier tool brands, writing, “One of the best I've ever used. I've had Snap-On and Mac and they have nothing over the Milwaukee tool line.”
The lightweight build also gets praise. As one customer put it, “Compact yet tough and strong! Dependable and high-quality!”
Flash deals on big brands like this don’t tend to stick around, so visit Walmart’s site today and pick up the Milwaukee M18 1/2-Inch Impact Wrench for only $139 while it’s still marked down 44%.
This story was originally reported by Autoblog on Aug 26, 2025, where it first appeared in the Deals section. Add Autoblog as a Preferred Source by clicking here.
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