10 Best Highest Torque Impact Wrench 2025 in the United States

The Milwaukee 2967-20 M18 FUEL™ 1/2" High Torque Impact Wrench is a robust tool designed for heavy-duty use. Its standout feature is the brushless motor which delivers impressive torque, up to 1,100 ft-lbs for fastening and 1,600 ft-lbs for nut-busting, making it suitable for demanding applications. The inclusion of a friction ring enhances the ease of socket changes, which is convenient during intense work sessions.

Additionally, the AUTO SHUT-OFF control ensures that hand-tight fastening applications are completed without overtightening, and the Bolt Removal Control helps prevent fastener drops by decreasing RPMs once a bolt is loosened, adding to user safety and efficiency. The wrench operates at 18 volts, relying on battery power, which offers the flexibility of cordless operation but requires purchasing batteries separately as they are not included in the tool-only package. Weighing 2.7 kilograms (5.94 pounds), it strikes a balance between being heavy enough for stable operation and manageable for extended use, though some users might find it slightly heavy for prolonged use.

The ergonomic design aids in user comfort. Made of durable metal, this wrench is built to withstand tough working conditions, enhancing its longevity. However, its size (7.6 inches in length) might be cumbersome in tight spaces. The product has received excellent customer reviews with a 4.7-star rating from 717 ratings, indicating high user satisfaction. If you need a reliable, high-torque impact wrench for heavy-duty tasks, this tool is a solid choice, though be prepared for its weight and the additional cost of batteries.

The DEWALT 20V MAX Cordless Impact Wrench (DCF961B) is a robust tool designed for heavy-duty applications. It boasts an impressive 1200 ft-lbs of max fastening torque and 1750 ft-lbs of max breakaway torque, making it ideal for tasks like working on large-sized pipe flanges and wheel lugs where high torque is essential. The 1/2 inch drive size is standard and versatile, fitting many common sockets and attachments.

Power is supplied by a 20V lithium battery, though it's important to note that batteries are not included with the bare tool, which means additional costs for users who don't already own compatible batteries. The impact wrench offers three speed settings and a precision wrench mode to help prevent overtightening, adding to its usability and control in diverse situations. It also features an LED work light to improve visibility in dark or confined spaces.

Weighing 8.4 pounds, it might affect ergonomics during prolonged use. However, its powder-coated finish promises durability and long-term use. This DEWALT impact wrench is suitable for users needing high torque and reliability, though the absence of included batteries and its relatively high weight may be drawbacks for some.

The Milwaukee M18 FUEL 18V brushless impact wrench stands out with an impressive torque of up to 2,000 ft-lbs, making it one of the most powerful cordless models available. Its 1-inch drive size is ideal for heavy-duty tasks, especially those involving large lug nuts. Powered by two high-capacity 12.0 Ah lithium-ion batteries, it offers excellent runtime, capable of handling up to 120 lug nuts on a single charge, which is great for demanding jobs without frequent recharging.

The tool’s brushless motor and REDLINK Plus intelligence protect it from overload and overheating, increasing durability and reliability. Features like the ONE-KEY system allow users to customize torque settings to avoid overtightening, adding precision and control that’s useful for professionals who need consistency. The adjustable D-handle and removable side handle improve ergonomics, but at 23.2 pounds, it’s relatively heavy, so it might feel bulky during extended use. The built-in LEDs help illuminate dark work areas, enhancing usability.

While the price and weight might be a consideration, this impact wrench is well-suited for mechanics, heavy equipment maintenance, and anyone needing powerful, cordless torque with smart control features.