The Hart Impact Wrench is the perfect addition to a DIY mechanic's toolbox
Hart has added another option to useful cordless tools, this time focusing on the garage. The Hart 1/2″ 20V Impact Wrench provides the impact force to work your nuts and larger nuts and bolts, all without the hassle of air hoses and compressors.
10 second summary
- Model: Hart HPIW01
- Available in 350 ft-lbs. torque
- 0-2,900 rpm
- 0-3,200IPM
- 3.3 lbs.
- 1/2″ square drive with friction ring
- LED work light
- Warranty: 3 years
- Price: $119 (bare metal)
feature
The Hart 20V 1/2″ Impact Wrench delivers up to 350 foot-pounds of torque. It spins from 0-2900 RPM and hits at speeds up to 3200 strokes per minute.

For a casual mechanic, that's probably enough for you to do most common fastening and loosening applications. And, it packs all this functionality and portability into a 3.3-pound package. frame.
The Hart HPIW01 uses friction rings for quick socket changes. An integrated LED task light lets you see what you're doing, even when you're under the hood or in a poorly lit space.
Check out our best cordless impact wrenches article for our specific recommendations.
our thoughts
The 350 foot-pound figure seems to fall under "loose torque". Still, even a few hundred foot-pounds of tightening torque will do most of the jobs you'll find in a hobbyist or auto enthusiast. A tool like this will remove most lug nuts from anything from cars and trucks to zero-turn lawn mowers. It also enables you to tighten the lug nuts until you hit the shock mechanism – then finish with a torque wrench to get the exact amount you need.
While not a professional-grade tool, the Hart HPIW01 20V Impact Wrench should prove to be a hit. The 3-year warranty doesn't hurt either.
Pricing and Availability
Like the rest of Hart's 20V cordless tool line, you can buy the Hart 1/2″ Impact Wrench exclusively at Walmart. It's sold bare-bones, allowing you to choose how much battery you actually need. You can choose from 1.5Ah, 2.0Ah and 4.0Ah.
The Hart HPIW01 retails for $119 and comes with a 3-year warranty.
- Model: Hart HPIW01
- Battery: 20V Li-ion battery
- Speed: 0-2,900 rpm
- Impact: 0-3,200 IPM
- Torque: Up to 350 ft-lbs.
- Weight: 3.3 lbs.
- Warranty: 3 years
- Price: $119 (bare metal)