Review on Powerful 12V DC Electric Impact Wrench Kit - Wagan Mighty Impact Wrench With 1/2 Inch Drive And 271 Ft-Lbs Torque, Including Sockets And Carry Case For Tire Repair Tools by Ryan Olsen

I like the idea but it was just too weak. I was not able to budge a single lug on any wheel that were tightened to torque specs. I had to loosen the lugs by hand and used the impact wrench to take off the loosened lugs. Saved me a a couple of minutes but still required me to complete the hardest part by hand . Not sure if mine is defective as it states it provides >200lbs of force but my lugs were only tightened to 80lbs.