For example, most cordless drill/drivers produce about 50 foot-pounds of torque, and the average impact driver delivers about 125 foot-pounds. It employs both rotational force (torque) and short-burst concussive blows (impacts) to deliver an unparalleled amount of power. Unlike cordless drill/drivers and impact drivers, which excel at drilling holes and driving screws, the impact wrench is specially designed for tightening and loosening various hex-head bolts, nuts, and lag screws. What You Need to Know About Impact Wrenches How They Work Best Compact Impact Wrench: DEWALT Atomic 20V Max Compact 1/2-Inch Impact Wrench.Best for Mechanics: Milwaukee M18 FUEL Compact 1/2-Inch Compact Impact Wrench.High Torque for the Price: DEWALT 20V Max XR 1/2-Inch Impact Wrench.Best Value: Ryobi 18V One+ 1/2-Inch Impact Wrench.Best Overall: Milwaukee M18 Fuel 1/2-Inch Impact Wrench.Read on for some buying advice, followed by our findings and reviews of the best impact wrenches. We tested a range of impact wrenches-from a heavy-duty, high-torque model down to a compact, medium-duty model-and subjected them all to the same challenges to identify their strengths and weaknesses.
Not being tied to a compressor with an air hose, these tools can easily go wherever they’re needed. In fact, cordless impact wrenches have a tremendous advantage: mobility. The good news is that cordless, battery-powered impact wrenches have gotten better as battery technology improves, which has brought prices down and made them viable alternatives to their pneumatic cousins. To run a typical 1⁄2-inch pneumatic impact wrench, you usually need an air compressor putting out close to 100 psi-a significant investment. Historically, impact wrenches were predominantly pneumatic, or air powered, which left them squarely in the domain of professional mechanics.
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