10 Best Impact Wrenches For Cars 2025 in the United States

The DEWALT 20V MAX Cordless Impact Wrench Kit is a powerful tool designed for a variety of car-related fastening tasks. With a maximum fastening torque of 1030 ft-lbs and breakaway torque of 1400 ft-lbs, it offers robust performance capable of handling tough jobs. The 1/2 inch drive size is versatile for most automotive tasks. Powered by a 20V lithium-ion battery, this cordless impact wrench provides portability and freedom from cords, making it convenient for both home garages and professional mechanics.

The 4-mode speed settings and variable speed trigger offer enhanced control, which is crucial for preventing overtightening and fastener run-off. Additionally, the precision wrench control feature is designed to help users achieve the right torque without damaging parts. At 11 pounds, it is relatively heavy, which might be a drawback for extended use. However, its ergonomic design, coupled with a shock-absorbing battery connection, reduces fatigue and strain during operation. The built-in LED work light is a thoughtful addition for working in dimly lit areas.

The kit includes one 5.0 Ah battery, a charger, and a bag, providing everything needed to get started. A 3-year limited warranty and a 1-year free service contract add extra peace of mind. Despite its weight, the DEWALT 20V MAX Cordless Impact Wrench is an excellent choice for those needing a reliable and powerful tool for car maintenance and repair tasks.

The Milwaukee 2967-20 M18 FUEL™ 1/2" High Torque Impact Wrench is a powerful tool designed for car-related applications. One of its major strengths is its impressive torque. It delivers up to 1,100 ft-lbs of fastening torque and 1,600 ft-lbs of nut-busting torque, making it suitable for heavy-duty tasks like loosening stubborn bolts and nuts.

The ½" drive size is standard and versatile for most car maintenance needs. It operates on an 18-volt battery, which means no cords to worry about, providing flexibility and ease of use in different environments. However, it's important to note that this model is sold as 'tool only,' so you'd need to purchase the battery separately if you don't already own one compatible with the Milwaukee M18 series.

The impact wrench features AUTO SHUT-OFF control for hand-tight fastening to prevent overtightening, which is useful for precision tasks, and Bolt Removal Control to prevent fastener drops by decreasing RPMs after the bolt is loosened. Weighing 2.7 kilograms (about 5.94 pounds), it is relatively lightweight but substantial enough to feel durable and robust during use. The length of 7.6 inches ensures good maneuverability in tight spaces. As for ergonomics, the tool's design is practical, but it might feel heavy for extended use, especially without a balanced grip or if you're working overhead.

The Milwaukee 2962-20 M18 Fuel Impact Wrench is a solid choice for car owners and mechanics looking for a reliable mid-torque tool. It delivers up to 35 ft-lbs of torque, which is good for many fastening and loosening tasks but might fall short for very heavy-duty bolts. Its 1/2-inch drive size is a common standard, compatible with many sockets you'll likely need for automotive work. Being battery-powered with an 18V lithium-ion system offers good portability and eliminates the hassle of cords. At just over 4 pounds and 10 inches long, it’s fairly lightweight and compact, making it easier to handle in tight spaces.

The friction ring design allows quick socket changes, which can speed up your work. It also features handy tri-LED lights that improve visibility around your workspace, reducing shadows where you work on your car. One neat feature is the auto shut-off, which prevents overtightening by limiting torque during hand-tightening, helping protect your car’s fasteners. The bolt removal control smoothly lowers speed once a bolt is loose, reducing the chance of dropping parts.

This impact wrench may not provide enough power for the toughest lug nuts or stubborn bolts compared to high-torque models. Also, the plastic build keeps weight manageable but may not feel as rugged over time. If you want something efficient, easy to use, and good for regular car maintenance, this Milwaukee model fits well. For heavy commercial jobs, you might look for a tool with higher torque.