Top positive review
Powerful enough to loosen wheel lugnuts; small enough to work in tire well area.
January 29, 2018
Finally, I got to use my DeWalt Model DCF880HM2 impact wrench to replace the shock absorber assemblies on my Honda Accord. My concern was whether it can loosen the lugnuts on the wheels. It was no problem, as long as the lugnuts were not over torqued to begin with. It will loosen the lugnuts that are torqued to factory specifications for passenger cars & light trucks (75 to 80 ft-lb torque). I do not know how high it can go on the torque before failing to do the job.
My second concern was whether it is small enough to manuever around the brake and suspension area. I never had a problem using it for removing the shock absorber on my car, even with the deep impact sockets I used.
Yes, you can buy a more powerful impact wrench, but it will be bulky. This wrench is light, small, and sufficiently powerful for most automotive taks. It is just at the optimum sweet spot. I recommend it to any home mechanic who doesn't or would not want to own air tools. It makes working around cars more efficient and enjoyable. I expect the Litium Ion battery to last for years, with occasional use. Storing the wrench for a long time should not be as problematic as the old NiCd battery technology. In general, if you want to store a Li-ion battery for a longtime, store it with 40%-75% charged. Battery manufacturers store lithium batteries at around 60 deg F and at a 40% charge level. Batteries self discharge even when sitting on a shelf, not connected to anything. You can store the batteries at a lower charge level, but you have to check the charge level more frequently to make sure it did not completely discharge. The reason is that storing Li-ion batteries while completely discharged will harm them. It is prudent to check the charge level at least once a year and charge it if it is too low. Do not store Li-ion batteries in your garage where it can get hot. The cooler, the better.
If you have been shunning portable battery operated tools, like I did before, it is time to reconsider.