The impact wrench has well fulfilled the expected functions of me. Since I could not fall back on previous reviews, I had somehow buying a queasy feeling. The delivery was very quick, but carelessly packed (shipping). Your original box summarizes fit in the outer packaging of the supplier and the existing cavity was filled with crumpled paper. As one can imagine, that during transport the paper is pushed together by the weight of the pack screwdriver and then beats back and forth in a box. The manufacturer had, however, be taken with packaging in a plastic case even less care, working not to say absolutely dissolute. The cable was pinched in the trunk and you obviously trying to close the case by force, with the result that the left flap is pressed and no longer closes because the plastic is geplatz. From the supplied bits only one fits in the notches provided, so a herumkullert in the trunk. So much for the first impression. The practical test on the car has shown that this is deceptive. The unit has easily solved the wheel nuts and tighten with the appropriate default - and fast. I previously had an impact wrench of Einhell, which I had borrowed from my neighbor. The borrowed screwdriver needed forever and you could only guess whether the nuts were tight or already zufest. Despite operating instructions in English of TT607c handling is logically understandable and should not be a problem a reasonably talented car owner. I would highly recommend clear at this point the device. The device is not even warmed up in Benutung, compared to product that has my neighbor. The price is justified by the difference of the other product.