The batteries of the wrench fit perfectly. The batteries last depending on the usage strength of the slider between 45-75 minutes.
The spare wheels are priced well to cope with yet. The fact that no power cable is needed is great, it is therefore very mobile, without sacrificing performance noticeably.
The battery and the dust collection container can be quickly and relatively easily switch.
Grinding does the device good to very good.
Now for the two disadvantages:
, Especially if it is 1. noisy little dirty
2. it vibrates in your hands (does not bother me, but my wife is sensitive and gets thereby quickly swollen fingers or hands)
All in all, strong buy recommendation.